- Skip to main content
- Skip to primary sidebar
- Skip to footer
Additional menu
Khan Academy Blog
Free Math Worksheets — Over 100k free practice problems on Khan Academy
Looking for free math worksheets.
You’ve found something even better!
That’s because Khan Academy has over 100,000 free practice questions. And they’re even better than traditional math worksheets – more instantaneous, more interactive, and more fun!
Just choose your grade level or topic to get access to 100% free practice questions:
Kindergarten, basic geometry, pre-algebra, algebra basics, high school geometry.
- Trigonometry
Statistics and probability
High school statistics, ap®︎/college statistics, precalculus, differential calculus, integral calculus, ap®︎/college calculus ab, ap®︎/college calculus bc, multivariable calculus, differential equations, linear algebra.
- Addition and subtraction
- Place value (tens and hundreds)
- Addition and subtraction within 20
- Addition and subtraction within 100
- Addition and subtraction within 1000
- Measurement and data
- Counting and place value
- Measurement and geometry
- Place value
- Measurement, data, and geometry
- Add and subtract within 20
- Add and subtract within 100
- Add and subtract within 1,000
- Money and time
- Measurement
- Intro to multiplication
- 1-digit multiplication
- Addition, subtraction, and estimation
- Intro to division
- Understand fractions
- Equivalent fractions and comparing fractions
- More with multiplication and division
- Arithmetic patterns and problem solving
- Quadrilaterals
- Represent and interpret data
- Multiply by 1-digit numbers
- Multiply by 2-digit numbers
- Factors, multiples and patterns
- Add and subtract fractions
- Multiply fractions
- Understand decimals
- Plane figures
- Measuring angles
- Area and perimeter
- Units of measurement
- Decimal place value
- Add decimals
- Subtract decimals
- Multi-digit multiplication and division
- Divide fractions
- Multiply decimals
- Divide decimals
- Powers of ten
- Coordinate plane
- Algebraic thinking
- Converting units of measure
- Properties of shapes
- Ratios, rates, & percentages
- Arithmetic operations
- Negative numbers
- Properties of numbers
- Variables & expressions
- Equations & inequalities introduction
- Data and statistics
- Negative numbers: addition and subtraction
- Negative numbers: multiplication and division
- Fractions, decimals, & percentages
- Rates & proportional relationships
- Expressions, equations, & inequalities
- Numbers and operations
- Solving equations with one unknown
- Linear equations and functions
- Systems of equations
- Geometric transformations
- Data and modeling
- Volume and surface area
- Pythagorean theorem
- Transformations, congruence, and similarity
- Arithmetic properties
- Factors and multiples
- Reading and interpreting data
- Negative numbers and coordinate plane
- Ratios, rates, proportions
- Equations, expressions, and inequalities
- Exponents, radicals, and scientific notation
- Foundations
- Algebraic expressions
- Linear equations and inequalities
- Graphing lines and slope
- Expressions with exponents
- Quadratics and polynomials
- Equations and geometry
- Algebra foundations
- Solving equations & inequalities
- Working with units
- Linear equations & graphs
- Forms of linear equations
- Inequalities (systems & graphs)
- Absolute value & piecewise functions
- Exponents & radicals
- Exponential growth & decay
- Quadratics: Multiplying & factoring
- Quadratic functions & equations
- Irrational numbers
- Performing transformations
- Transformation properties and proofs
- Right triangles & trigonometry
- Non-right triangles & trigonometry (Advanced)
- Analytic geometry
- Conic sections
- Solid geometry
- Polynomial arithmetic
- Complex numbers
- Polynomial factorization
- Polynomial division
- Polynomial graphs
- Rational exponents and radicals
- Exponential models
- Transformations of functions
- Rational functions
- Trigonometric functions
- Non-right triangles & trigonometry
- Trigonometric equations and identities
- Analyzing categorical data
- Displaying and comparing quantitative data
- Summarizing quantitative data
- Modeling data distributions
- Exploring bivariate numerical data
- Study design
- Probability
- Counting, permutations, and combinations
- Random variables
- Sampling distributions
- Confidence intervals
- Significance tests (hypothesis testing)
- Two-sample inference for the difference between groups
- Inference for categorical data (chi-square tests)
- Advanced regression (inference and transforming)
- Analysis of variance (ANOVA)
- Scatterplots
- Data distributions
- Two-way tables
- Binomial probability
- Normal distributions
- Displaying and describing quantitative data
- Inference comparing two groups or populations
- Chi-square tests for categorical data
- More on regression
- Prepare for the 2020 AP®︎ Statistics Exam
- AP®︎ Statistics Standards mappings
- Polynomials
- Composite functions
- Probability and combinatorics
- Limits and continuity
- Derivatives: definition and basic rules
- Derivatives: chain rule and other advanced topics
- Applications of derivatives
- Analyzing functions
- Parametric equations, polar coordinates, and vector-valued functions
- Applications of integrals
- Differentiation: definition and basic derivative rules
- Differentiation: composite, implicit, and inverse functions
- Contextual applications of differentiation
- Applying derivatives to analyze functions
- Integration and accumulation of change
- Applications of integration
- AP Calculus AB solved free response questions from past exams
- AP®︎ Calculus AB Standards mappings
- Infinite sequences and series
- AP Calculus BC solved exams
- AP®︎ Calculus BC Standards mappings
- Integrals review
- Integration techniques
- Thinking about multivariable functions
- Derivatives of multivariable functions
- Applications of multivariable derivatives
- Integrating multivariable functions
- Green’s, Stokes’, and the divergence theorems
- First order differential equations
- Second order linear equations
- Laplace transform
- Vectors and spaces
- Matrix transformations
- Alternate coordinate systems (bases)
Frequently Asked Questions about Khan Academy and Math Worksheets
Why is khan academy even better than traditional math worksheets.
Khan Academy’s 100,000+ free practice questions give instant feedback, don’t need to be graded, and don’t require a printer.
Math Worksheets | Khan Academy |
---|---|
Math worksheets take forever to hunt down across the internet | Khan Academy is your one-stop-shop for practice from arithmetic to calculus |
Math worksheets can vary in quality from site to site | Every Khan Academy question was written by a math expert with a strong education background |
Math worksheets can have ads or cost money | Khan Academy is a nonprofit whose resources are always free to teachers and learners – no ads, no subscriptions |
Printing math worksheets use up a significant amount of paper and are hard to distribute during virtual learning | Khan Academy practice requires no paper and can be distributed whether your students are in-person or online |
Math worksheets can lead to cheating or a lack of differentiation since every student works on the same questions | Khan Academy has a full question bank to draw from, ensuring that each student works on different questions – and at their perfect skill level |
Math worksheets can slow down student learning since they need to wait for feedback | Khan Academy gives instant feedback after every answer – including hints and video support if students are stuck |
Math worksheets take up time to collect and take up valuable planning time to grade | Khan Academy questions are graded instantly and automatically for you |
What do Khan Academy’s interactive math worksheets look like?
Here’s an example:
What are teachers saying about Khan Academy’s interactive math worksheets?
“My students love Khan Academy because they can immediately learn from their mistakes, unlike traditional worksheets.”
Is Khan Academy free?
Khan Academy’s practice questions are 100% free—with no ads or subscriptions.
What do Khan Academy’s interactive math worksheets cover?
Our 100,000+ practice questions cover every math topic from arithmetic to calculus, as well as ELA, Science, Social Studies, and more.
Is Khan Academy a company?
Khan Academy is a nonprofit with a mission to provide a free, world-class education to anyone, anywhere.
Want to get even more out of Khan Academy?
Then be sure to check out our teacher tools . They’ll help you assign the perfect practice for each student from our full math curriculum and track your students’ progress across the year. Plus, they’re also 100% free — with no subscriptions and no ads.
Get Khanmigo
The best way to learn and teach with AI is here. Ace the school year with our AI-powered guide, Khanmigo.
For learners For teachers For parents
15 Challenging Geometry Problems and Their Step-by-Step Solutions
- Author: Noreen Niazi
- Last Updated on: August 22, 2023
Introduction to Geometry Problems
The area of mathematics known as geometry is concerned with the study of the positions, dimensions, and shapes of objects.Geometry has applications in various fields, such as engineering, architecture, and physics. Geometry problems are among the most challenging and exciting problems in mathematics. Understanding and mastering geometry problems is essential for anyone who wants to pursue a career in any field requiring a good understanding of geometry.
Importance of Practicing Geometry Problems
Practicing geometry problems is essential for anyone who wants to master geometry. Geometry problems require a good understanding of the concepts, formulas, and theorems. By practicing geometry problems, you will develop a deep understanding of the concepts and the formulas.
You will also be able to identify the issues and the strategies to solve them. Practicing geometry problems will also help you to improve your problem-solving skills, which will be helpful in other areas of your life.
Types of Geometry Problems
There are several types of geometry problems. Some of the common types of geometry problems include:
- Congruence problems: These problems involve proving that two or more shapes are congruent.
- Similarity problems: These problems involve proving that two or more shapes are similar.
- Area and perimeter problems: These problems involve finding the area and perimeter of various shapes.
- Volume and surface area problems: These problems involve finding the volume and surface area of various shapes.
- Coordinate geometry problems: These problems involve finding the coordinates of various points on a graph.
Strategies for Solving Geometry Problems
To solve geometry problems, you must understand the concepts, formulas, and theorems well. You also need to have a systematic approach to solving problems. Some of the strategies for solving geometry problems include:
- Read the problem carefully: You must read the situation carefully and understand what is required.
- Draw a diagram: You need to draw a diagram representing the problem. This will help you to visualize the problem and identify the relationships between the shapes.
- Identify the type of problem: You need to identify the problem type and the applicable formulas and theorems.
- Solve the problem step by step: You need to solve the problem step by step, showing all your work.
- Check your answer: You must check it to ensure it is correct.
Common Geometry Formulas and Theorems
To solve geometry problems, you must understand the standard formulas and theorems well. Some of the common procedures and theorems include:
- Area of a square: side × side.
- Pythagoras theorem: a² + b² = c², where a and b are the lengths of the two sides of a right-angled triangle, and c is the hypotenuse length.
- Area of a rectangle: length × breadth.
- Circumference of a circle : 2 × π × radius.
- Area of a triangle : ½ × base × height.
- Congruent triangles theorem: Triangles are congruent if they have the same shape and size.
- Area of a circle: π × radius².
- Similar triangles theorem: Triangles are similar if they have the same shape but different sizes.
Problem 1: Lets the length of three sides of triangle be 3 cm, 4 cm, and 5 cm. Calculate the area of a right-angled triangle.
Using the Pythagoras theorem:
$$a² + b² = c²$$
where a = 3 cm, b = 4 cm, and c = 5 cm.
$$3² + 4² = 5²$$
$$9 + 16 = 25$$
Therefore, $$c² = 25$$, and $$c = √25 = 5 cm$$.
- The area of the triangle = $$½ × \text{base} × \text{height}$$
$$= ½ × 3 cm × 4 cm $$
$$= 6 cm².$$
Problem 2:If the length of each side of an equilateral triangle is 10 cm then calculate its perimeter.
As the perimeter of an equilateral triangle = $$3 × side length.$$
- Therefore, the perimeter of the triangle $$= 3 × 10 cm = 30 cm.$$
Problem 3: If cylinder has 4cm radius and 10 cm height then what is the volume of a cylinder.
The volume of a cylinder = $$π × radius² × height.$$
- Therefore, the volume of the cylinder $$= π × 4² × 10 cm = 160π cm³$$.
Problem 4: If radius of a circle is given by 5cm and central angle 60° then what is the area of sector of a circle.
The area of a sector of a circle $$= (central angle ÷ 360°) × π × radius².$$
- Therefore, the area of the sector $$= (60° ÷ 360°) × π × 5² c = 4.36 cm².$$
Problem 5: Find the hypotenuse of right-angled triangle, if its other two sides are of 8 cm and 15 cm.
Using the Pythagoras theorem :
Where a = 8 cm, b = 15 cm , and c is the hypotenuse length.
$$8² + 15² = c²$$
$$64 + 225 = c²$$
- Therefore, $$c² = 289,$$ and $$c = √289 = 17 cm.$$
Problem 6: If two parallel sides of trapezium are of length 5 cm and 10 cm and height 8 cm. Calculate the area of a trapezium.
The area of a trapezium = $$½ × (sum of parallel sides) × height.$$
- Therefore, the area of the trapezium $$= ½ × (5 cm + 10 cm) × 8 cm = 60 cm².$$
Problem 7: Radius and height of cone is given by 6cm and 12 cm respectively. Calculate its volume.
The volume of a cone $$= ⅓ × π × radius² × height.$$
- Therefore, the volume of the cone $$= ⅓ × π × 6² × 12 cm³ = 452.39 cm³.$$
Problem 8:What is the length of side of square if its area is 64 cm².
The area of a square $$= side × side.$$
- Therefore, $$side = √64 cm = 8 cm.$$
Problem 9: If length rectangle is 10cm and breadth is 6cm. Calculate its diagonal.
Where $$a = 10 cm$$, $$b = 6 cm$$, and c is the diagonal length.
$$10² + 6² = c²$$
$$100 + 36 = c²$$
- Therefore, $$c² = 136,$$ and $$c = √136 cm = 11.66 cm.$$
Problem 10: If one side of regular hexagon is of 8cm then what is the area of a regular hexagon.
The area of a regular hexagon $$= 6 × (side length)² × (√3 ÷ 4).$$
- Therefore, the area of the hexagon $$= 6 × 8² × (√3 ÷ 4) cm² = 96√3 cm².$$
Problem 11: If radius of sphere is 7 cm, then what is its volume.
The volume of a sphere = $$⅔ × π × radius³.$$
- Therefore, the volume of the sphere $$= ⅔ × π × 7³ cm³ = 1436.76 cm³.$$
Problem 12: Find the hypotenuse length of a right-angled triangle with sides of 6 cm and 8 cm.
Where a = 6 cm, b = 8 cm, and c is the hypotenuse length.
$$6² + 8² = c²$$
$$36 + 64 = c²$$
Therefore, $$c² = 100,$$ and $$c = √100 cm = 10 cm.$$
Problem 13: Find the area of a rhombus with 12 cm and 16 cm diagonals.
The area of a rhombus = (diagonal 1 × diagonal 2) ÷ 2.
- Therefore, the area of the rhombus = (12 cm × 16 cm) ÷ 2 = 96 cm².
Problem 14: If radius and central angle of circle is 4cm and 45° respectively then what is the length oof arc of circle.
The length of the arc of a circle = (central angle ÷ 360°) × 2 × π × radius.
- Therefore, the length of the arc = (45° ÷ 360°) × 2 × π × 4 cm
Problem 15: Find the length of the side of a regular octagon with the radius of the inscribed circle measuring 4 cm.
The length of the side of a regular octagon = (radius of the inscribed circle) × √2.
Therefore, the length of the side of the octagon = 4 cm × √2
Online Resources for Geometry Practice Problems
There are several online resources that you can use to practice geometry problems. Some of the popular online resources include:
- Khan Academy : On the free online learning platform Khan Academy, you may find practise questions and video lectures on a variety of subjects, including geometry.
- Mathway : Mathway is an online tool that can solve various math problems, including geometry problems.
- IXL :IXL is a website that provides practise questions and tests on a variety of subjects, including geometry.
Q: What is geometry?
A: Geometry is the branch of mathematics that studies objects’ shapes, sizes, and positions.
Q: Why is practicing geometry problems significant?
A: Practicing geometry problems is essential for anyone who wants to master geometry. Geometry problems require a good understanding of the concepts, formulas, and theorems. By practicing geometry problems, you will develop a deep understanding of the concepts and the formulas.
Q: What are some standard geometry formulas and theorems?
A: Some of the standard geometry formulas and theorems include the Pythagoras theorem, area of a triangle, area of a square, area of a rectangle, area of a circle, circumference of a circle, congruent triangles theorem, and similar triangles theorem.
Geometry problems are among the most challenging and exciting problems in mathematics. Understanding and mastering geometry problems is essential for anyone who wants to pursue a career in any field requiring a good understanding of geometry. By practicing geometry problems and using the strategies and formulas discussed in this article, you can master geometry and improve your problem-solving skills.
- Math Tutorials
- Trigonometry
- Cookie Policy
- Privacy Policy and Terms of Use
Connect With Us
- LearnAboutMath Newsletter
The Best Math Website for Learning and Practice
By signing up you are agreeing to receive emails according to our privacy policy.
Stay tuned with our latest math posts
Geometry Questions
Geometry questions, with answers, are provided for students to help them understand the topic more easily. Geometry is a chapter that has been included in almost all classes. The questions will be provided in accordance with NCERT guidelines. The use of geometry can be seen in both mathematics and everyday life. Thus, the fundamentals of this topic must be understood. The questions here will cover both the fundamentals and more difficult problems for students of all levels. As a result, students will be skilled in using it to solve geometry problems. Click here to learn more about Geometry.
Geometry is a discipline of mathematics dealing with the study of various forms of shapes and sizes of real-world objects. We study different angles, transformations, and similarities of figures in geometry. The fundamentals of geometry are based on the concepts of point, line, angle, and plane. These fundamental geometrical concepts govern all geometrical shapes. |
Here, we are going to discuss different geometry questions, based on different concepts with solutions.
Geometry Questions with Solutions
1. The lines that are equidistant from each other and never meet are called ____.
Parallel lines are the lines that are equidistant from each other and never meet. The parallel lines are represented with a pair of vertical lines and its symbol is “||”. If AB and CD are the two parallel lines, it is denoted as AB || CD.
2. If two or more points lie on the same line, they are called _____.
If two or more points lie on the same line, they are called collinear points. If points A, B and C lie on the same line “l”, then we can say that the points are collinear.
: An angle is defined as the shape created by two rays intersecting at a common endpoint. The symbol is used to symbolise an angle is “∠” and it is measured in degrees (°). Angles can be categorized based on their measurements. They are: Acute Angle: Angle < 90° Right Angle: Angle = 90° Obtuse Angle: Angle > 90° Straight Angle: Angle = 180° Reflex Angle: Angle > 180° and < 360° Complete Angle: Angle = 360° |
3. Find the number of angles in the following figure.
In the given figure, there are three individual angles, (i.e.) 30°, 20° and 40°.
Two angles in a pair of 2. (i.e.) 20° + 30° = 50° and 20 + 40 = 60°
One angle in a pair of 3 (i.e) 20° + 30° + 40° = 90°
Hence, the total number of possible angles in the given figure is 6 .
4. In the given figure, ∠BAC = 90°, and AD is perpendicular to BC. Find the number of right triangles in the given figure.
Given: ∠BAC = 90° and AD⊥BC.
Since AD⊥BC, the two possible right triangles obtained are ∠ADB and ∠ADC.
Hence, the number of right triangles in the given figure is 3.
I.e., ∠BAC = ∠ADB = ∠ADC = 90°.
A two-dimensional shape can be characterised as a flat planar figure or a shape that has two dimensions — length and width. There is no thickness to two-dimensional shapes. Circles, triangles, squares, rectangles, and other 2D shapes are examples. The region enclosed by the figure is the area of a 2D shape. The perimeter of a two-dimensional shape is equal to the sum of the lengths of all its sides. : . |
5. The length of a rectangle is 3 more inches than its breadth. The area of the rectangle is 40 in 2 . What is the perimeter of the rectangle?
Given: Area = 40 in 2 .
Let “l” be the length and “b” be the breadth of the rectangle.
According to the given question,
b = b and l = 3+b
We know that the area of a rectangle is lb units.
So, 40 = (3+b)b
40 = 3b +b 2
This can be written as b 2 +3b-40 = 0
On factoring the above equation, we get b= 5 and b= -8.
Since the value of length cannot be negative, we have b = 5 inches.
Substitute b = 5 in l = 3 + b, we get
l = 3 + 5 = 8 inches.
As we know, the perimeter of a rectangle is 2(l+b) units
P = 2 ( 8 + 5)
P = 2 (13) = 26
Hence, the perimeter of a rectangle is 26 inches.
6. What is the area of a circle in terms of π, whose diameter is 16 cm?
Given: Diameter = 16 cm.
Hence, Radius, r = 8 cm
We know that the area of a circle = πr 2 square units.
Now, substitute r = 8 cm in the formula, we get
A = π(8) 2 cm 2
A = 64π cm 2
Hence, the area of a circle whose diameter is 16 cm = 64π cm 2 .
7. Find the missing angle in the given figure.
Given two angles are 35° and 95°.
Let the unknown angle be “x”.
We know that sum of angles of a triangle is 180°
Therefore, 35°+95°+x = 180°
130°+ x = 180°
x = 180° – 130°
Hence, the missing angle is 50°.
Solids with three dimensions, such as length, breadth, and height, are known as 3D forms. Cube, cuboid, cylinder, cone, sphere, and other 3D shapes are examples. Surface area and volume are two properties of 3D geometric shapes. The area covered by the 3D shape at the base, top, and all faces, including any curved surfaces, is referred to as the surface area. The volume is defined as the total amount of space required for the 3D shape. : . |
8. Find the curved surface area of a hemisphere whose radius is 14 cm.
Given: Radius = 14 cm.
As we know, the curved surface area of a hemisphere is 2πr 2 square units.
CSA of hemisphere = 2×(22/7)×14×14
CSA = 2×22×2×14
Hence, the curved surface area of a hemisphere is 1232 cm 2 .
9. Find the volume of a cone in terms π, whose radius is 3 cm and height is 4 cm.
Given: Radius = 3 cm
Height = 4 cm
We know that the formula to find the volume of a cone is V = (⅓)πr 2 h cubic units.
Now, substitute the values in the formula, we get
V = (⅓)π(3) 2 (4)
V = π(3)(4)
V = 12π cm 3
Hence, the volume of a cone in terms of π is 12π cm 3 .
10. The base area of a cylinder is 154 cm 2 and height is 5 cm. Find the volume of a cylinder.
Given: Base area of a cylinder = 154 cm 2 .
As the base area of a cylinder is a circle, we can write πr 2 = 154cm 2 .
We know that the volume of a cylinder is πr 2 h cubic units.
V = 154(5) cm 3
V = 770 cm 3
Hence, the volume of a cylinder is 770 cm 2 .
Practice Questions
- Find the area of a square whose side length is 6 cm.
- Find the number of obtuse angles in the given figure.
3. Find the number of line segments in the given figure and name them.
Stay tuned to BYJU’S – The Learning App, and download the app to learn all Maths concepts by exploring more videos.
MATHS Related Links | |
Leave a Comment Cancel reply
Your Mobile number and Email id will not be published. Required fields are marked *
Request OTP on Voice Call
Post My Comment
Register with BYJU'S & Download Free PDFs
Register with byju's & watch live videos.
Reset password New user? Sign up
Existing user? Log in
- Number Theory
- Probability
- Everyday Math
- Classical Mechanics
- Electricity and Magnetism
- Computer Science
- Quantitative Finance
Take a guided, problem-solving based approach to learning Geometry. These compilations provide unique perspectives and applications you won't find anywhere else.
Geometry Fundamentals
What's inside.
- Introduction
- Angles and Lengths
- Pythagoras' Geometry
- Scaling and Volume
- When Geometry Gets Tough
Beautiful Geometry
- Tessellations and Reptiles
- Folding Puzzles
- Guarding Galleries
- Pick's Theorem
- Composite Polygons
- Regular Polygons
Community Wiki
Browse through thousands of Geometry wikis written by our community of experts.
Geometric Measurement
- Parallel Lines (Geometry)
- Area of a Triangle
- Area of a Rectangle
- Length and Area Problem Solving
- Composite Figures
- Volume of a Cuboid
- Volume of a Cylinder
- Volume of a Sphere
- Volume of a Pyramid
- Volume Problem Solving
- Calculating the Size of Earth
- Sphere Packing
- Surface Area
- Surface Area of a Cuboid
- Surface Area of a Sphere
- Surface Area of a Cylinder
- Pythagorean Theorem
- Triangle Inequality
- Classification of Triangles
- Properties of Equilateral Triangles
- Properties of Isosceles Triangles
- Congruent and Similar Triangles
- Heron's Formula
- Pascal's Theorem
- Centroid of a Triangle
- Circumcenter
- Orthocenter
- Ceva's Theorem
- Apollonius's Theorem
- Quadrilateral Classification
- Properties of Squares
- Properties of Rectangles
- Properties of Parallelograms
- Properties of Trapezoids (US) / Trapeziums (UK)
- Similar Figures
- Basic Composite Figures
- Irregular Polygons
- Area of a Polygon
- Tangent - Perpendicular to Radius
- Alternate Segment Theorem
- Two Secants
- Tangent-Secant
- Incircle of Triangle
- Incircles and Excircles
- Cyclic Quadrilaterals
- Steiner Ellipse, Minimal Area Through Three Points
Coordinate Geometry
- Linear Equations
- Equations of Parallel and Perpendicular Lines
- Midpoint of a Line Segment
- Distance Formula
- Distance between Point and Line
- Section Formula
- Equation of Locus
- Determining Coordinates
- Coordinate Geometry - Angle Bisector
- Conic Sections
- Equation of a Circle
- Discriminant of a Conic Section
- 3D Coordinate Geometry - Distance
- 3D Coordinate Geometry - Equation of a Line
- 3D Coordinate Geometry - Skew Lines
- 3D Coordinate Geometry - Equation of a Plane
- 3D Coordinate Geometry - Parallel Planes
- 3D Coordinate Geometry - Perpendicular Planes
- 3D Coordinate Geometry - Intersection of Planes
- Trigonometry
- Converting Degrees and Radians
- Basic Trigonometric Functions
- Reciprocal Trigonometric Functions
- Inverse Trigonometric Functions
- Bearing - Word Problems
- Hyperbolic Trigonometric Functions
- Local Linearization
- Sine and Cosine Graphs
- Tangent and Cotangent Graphs
- Cosecant and Secant Graphs
- Inverse Trigonometric Graphs
- Symmetry in Trigonometric Graphs
- Trigonometric Graphs - Amplitude and Periodicity
- Graphical Transformation of Trigonometric Functions
- Graphs of Trigonometric Functions - Problem Solving
- Trigonometric Equations
- Trigonometric Equations - Double Angle Formula
- Lengths in Right Triangles
- Sine Rule (Law of Sines)
- Cosine Rule (Law of Cosines)
- Solving Triangles
Trigonometric Identities
- Pythagorean Identities
- Ratio of Trigonometric Functions
- Trigonometric Even-odd Functions
- Trigonometric Periodicity Identities
- Trigonometric Co-function Identities
- Trigonometric R method
- Fundamental Trigonometric Identities - Problem Solving (Easy)
- Double Angle Identities
- Sum and Difference Formulas
- Triple Angle Identities
- Expansions of sin(nx) and cos(nx)
- Half Angle Tangent Substitution
- Trigonometric Power Reduction Identities
- Product-to-Sum Trigonometric Formulas
- Sum to Product Trigonometric Identities
- Proving Trigonometric Identities
- Chebyshev Polynomials - Definition and Properties
- Vector Addition
- Vector Decomposition
- Unit Vectors
- Dot Product
- Cross Product
3D Geometry
- Regular Polyhedra
Euclidean Geometry
- Isosceles Triangle Theorem
- Angle Bisector Theorem
- Menelaus' Theorem
- Stewart's Theorem
- Orthic Triangle
- Nine-point Circle
- Routh's Theorem
- Pedal Triangle
- Projective Geometry
- Brahmagupta's Formula
- Power of a Point
- Radical Axis of 2 Circles
- Ptolemy's Theorem
- Pitot's Theorem
- Descartes' Circle Theorem
Geometric Transformations
- Affine transformations
- Does 1 square meter equal 100 square centimeters?
- Can a triangle have an angle of 0 degrees?
- Möbius Strips
- Klein Bottle
- Spherical Geometry
- Hyperbolic Geometry
- Metric Space
- Homeomorphism
- Stone-Weierstrass Theorem
- Brouwer Fixed Point Theorem
- Ham Sandwich Theorem
- Hilbert Space
- Banach Tarski Paradox
- Axiom Of Choice
- Converse Of Intermediate Value Theorem
- Connected Space
- Closed Sets
- Compact Space
- Subsequences
Problem Loading...
Note Loading...
Set Loading...
- Skip to primary navigation
- Skip to main content
- Privacy Policy
- Terms of Service
- Accessibility Statement
Help with high school geometry problems
Welcome to Geometry Help! I'm Ido Sarig , a high-tech executive with a BSc degree in Computer Engineering and an MBA degree in Management of Technology. I'm here to tell you that geometry doesn't have to be so hard! My goal with this website is to help you develop a better way to approach and solve geometry problems, even if spatial awareness is not your strongest quality.
If you are having difficulty with your high school geometry homework, or find that while you do OK in class you struggle with quiz and test questions that you’ve never seen before, or if you simply want to improve your geometry problem solving skills – you’ve come to the right place.
Here you will learn how to approach a textbook or test geometry problem, and how to identify the hints given in the question to guide you toward the right approach to solving it. Step-by-step, you will work through an extensive set of geometry problems and answers, and develop a better ‘feel’ for solving similar problems on your own.
Geometry Topics
About Ido Sarig
I'm a high-tech executive with a Computer Engineering degree. To help pay for my college education, I used to tutor high school kids in geometry. I found students were often intimidated by this subject, so I've developed ways to make it easier to understand.
Learn more about me →
Why is geometry so hard?
It's hard for people who approach math problems arithmetically rather than visually. But with practice, anyone can improve their spatial perception and get better at finding geometry answers, even to complex problems.
If you need to contact me, please email GeometryHelpBlog (at) gmail.com. If you tried to find a specific geometry problem on this website and could not find it, I’ll be happy to hear from you and see if I can add it to the site.
I am sorry that I can't always answer individual questions or respond to individual emails. So please forgive me if I don't respond to your email directly. But if I get several requests to explain a specific geometry problem, I will try my best to add it to the site as soon as I can.
Algebra: Geometry Word Problems
In these lessons, we look at geometry word problems, which involves geometric figures and angles described in words. You would need to be familiar with the formulas in geometry .
Related Pages Perimeter and Area of Polygons Nets Of 3D Shapes Surface Area Formulas Volume Formulas More Geometry Lessons
Making a sketch of the geometric figure is often helpful.
You can see how to solve geometry word problems in the following examples: Problems involving Perimeter Problems involving Area Problems involving Angles
There is also an example of a geometry word problem that uses similar triangles.
Geometry Word Problems Involving Perimeter
Example 1: A triangle has a perimeter of 50. If 2 of its sides are equal and the third side is 5 more than the equal sides, what is the length of the third side?
Solution: Step 1: Assign variables: Let x = length of the equal side. Sketch the figure.
Step 2: Write out the formula for perimeter of triangle . P = sum of the three sides
Step 3: Plug in the values from the question and from the sketch. 50 = x + x + x + 5
Combine like terms 50 = 3x + 5
Isolate variable x 3x = 50 – 5 3x = 45 x =15
Be careful! The question requires the length of the third side. The length of third side = 15 + 5 =20
Answer: The length of third side is 20
Example 2: Writing an equation and finding the dimensions of a rectangle knowing the perimeter and some information about the about the length and width. The width of a rectangle is 3 feet less than its length. The perimeter of the rectangle is 110 feet. Find its dimensions.
Geometry Word Problems Involving Area
Example 1: A rectangle is 4 times as long as it is wide. If the length is increased by 4 inches and the width is decreased by 1 inch, the area will be 60 square inches. What were the dimensions of the original rectangle?
Step 1: Assign variables: Let x = original width of rectangle
Step 2: Write out the formula for area of rectangle. A = lw
Step 3: Plug in the values from the question and from the sketch. 60 = (4x + 4)(x –1)
Use distributive property to remove brackets 60 = 4x 2 – 4x + 4x – 4
Put in Quadratic Form 4x 2 – 4 – 60 = 0 4x 2 – 64 = 0
This quadratic can be rewritten as a difference of two squares (2x) 2 – (8) 2 = 0
Factorize difference of two squares "> (2x) 2 – (8) 2 = 0 (2x – 8)(2x + 8) = 0
Since x is a dimension, it would be positive. So, we take x = 4
The question requires the dimensions of the original rectangle. The width of the original rectangle is 4. The length is 4 times the width = 4 × 4 = 16
Answer: The dimensions of the original rectangle are 4 and 16.
Example 2: This is a geometry word problem that we can solve by writing an equation and factoring. The height of a triangle is 4 inches more than twice the length of the base. The area of the triangle is 35 square inches. Find the height of the triangle.
Geometry Word Problems involving Angles
Example 1: In a quadrilateral two angles are equal. The third angle is equal to the sum of the two equal angles. The fourth angle is 60° less than twice the sum of the other three angles. Find the measures of the angles in the quadrilateral.
Step 1: Assign variables: Let x = size of one of the two equal angles Sketch the figure
Step 2: Write down the sum of angles in quadrilateral . The sum of angles in a quadrilateral is 360°
Step 3: Plug in the values from the question and from the sketch. 360 = x + x + (x + x) + 2(x + x + x + x) – 60
Combine like terms 360 = 4x + 2(4x) – 60 360 = 4x + 8x – 60 360 = 12x – 60
Isolate variable x 12x = 420 x = 35
The question requires the values of all the angles. Substituting x for 35, you will get: 35, 35, 70, 220
Answer: The values of the angles are 35°, 35°, 70° and 220°.
Example 2: The sum of the supplement and the complement of an angle is 130 degrees. Find the measure of the angle.
Geometry Word Problems involving Similar Triangles
Indirect Measurement Using Similar Triangles
This video illustrates how to use the properties of similar triangles to determine the height of a tree.
How to solve problems involving Similar Triangles and Proportions?
Given that triangle ABC is similar to triangle DEF, solve for x and y.
The extendable ramp shown below is used to move crates of fruit to loading docks of different heights. When the horizontal distance AB is 4 feet, the height of the loading dock, BC, is 2 feet. What is the height of the loading dock, DE?
Triangles ABC and A’B’C' are similar figures. Find the length AB.
How to use similar triangles to solve a geometry word problem?
Examples: Raul is 6 ft tall and he notices that he casts a shadow that’s 5 ft long. He then measures that the shadow cast by his school building is 30 ft long. How tall is the building?
We welcome your feedback, comments and questions about this site or page. Please submit your feedback or enquiries via our Feedback page.
Free Mathematics Tutorials
Geometry problems and questions with answers for grade 9.
Grade 9 geometry problems and questions with answers are presented. These problems deal with finding the areas and perimeters of triangles, rectangles, parallelograms, squares and other shapes. Several problems on finding angles are also included. Some of these problems are challenging and need a good understanding of the problem before attempting to find a solution. Also Solutions and detailed explanations are included.
Answers to the Above Questions
- measure of A = 60 degrees, measure of B = 30 degrees
- length of DF = 17 cm
- measure of A = 87 degrees
- size of angle MAC = 55 degrees
- size of angle MBD = 72 degrees
- size of angle DOB = 93 degrees
- size of angle x = 24 degrees
- perimeter of large rectangle = 84 cm
- measure of angle QPB = 148 degrees
- area of given shape = 270 square cm
- area of shaded region = 208 square cm
- ratio of area of outside square to area of inscribed square = 2:1
More References and Links
Popular pages.
- Geometry Problems With Solutions and Explanations for Grade 9
- Geometry Problems with Answers and Solutions - Grade 10
- Middle School Math (Grades 6, 7, 8, 9) - Free Questions and Problems With Answers
- Free Geometry Tutorials, Problems and Interactive Applets
- Grade 8 Geometry Problems and Questions with Answers
- Privacy Policy
- Mathematicians
- Math Lessons
- Square Roots
- Math Calculators
Hard Geometry Problems – Tackling Tough Challenges with Ease
Geometry problems often involve shapes, sizes, positions, and the properties of space. As I delve into the realm of geometry, it’s fascinating to explore the intricate challenges posed by harder problems in this field.
These problems test my understanding of concepts such as congruence, similarity, the Pythagorean Theorem, as well as area and perimeter calculations.
I find that working through these problems hones my analytical skills and enhances my spatial reasoning abilities.
Hard geometry problems usually cover a diverse array of topics, from basic triangle rules to complex geometric proofs.
Showcasing mastery in this domain often calls for a blend of creativity and meticulousness, especially as I encounter problems that push the boundaries of my knowledge. For example, proving that two or more shapes are congruent or similar or finding the area of intricate figures can be quite a brain teaser.
The journey through these challenges is not just about finding the right answers; it’s also about appreciating the beauty and precision of geometry itself. Are you ready to join me in unraveling the elegance and complexity of these geometrical puzzles?
Complex Geometry Problems
In my journey through mathematics , I’ve found that complex geometry problems often intimidate students preparing for standardized tests such as the ACT , GRE , and SAT . These problems can involve a variety of geometric figures, from triangles and circles to circular cylinders and squares .
When tackling triangles , I always pay attention to the isosceles and equilateral types. It’s crucial to remember that isosceles triangles have two sides of equal length, and the angles opposite these sides are equal. As for equilateral triangles , all three sides and angles are the same, with each angle measuring $\frac{\pi}{3}$ radians, or $60^\circ$.
Here’s a quick table summarizing triangle rules :
Triangle Type | Defining Feature | Angle Relationships |
---|---|---|
Isosceles | 2 equal sides | 2 equal angles |
Equilateral | 3 equal sides | 3 angles of $60^\circ$ each |
Right Triangle | 1 angle of $90^\circ$ | Pythagorean Theorem applies |
For circles , understanding the terminology is key. The diameter is twice the radius , and a chord that passes through the center of a circle forms a diameter . A semicircle is half of a circle, and when calculating area , I recall the formula $A = \pi r^2$, where $r$ is the radius .
If the problem involves a figure with both a triangle and a semicircle , I check if they share a side or a vertex . This often leads to interesting relationships between angles and sides which are essential to finding a solution .
Although these concepts might seem daunting at first, with practice, solving these types of geometry problems becomes a rewarding and enlightening act.
Solving Geometry Problems
When I tackle geometry problems , I think of them as intricate math puzzles . In my experience, practice is key to becoming proficient.
A reliable method I use involves several steps:
Understand the Problem : I carefully read the problem to grasp what’s being asked, especially the value we are trying to find, like the “value of ( x )”.
Draw It Out : I sketch the geometry figure, labeling known measurements and angles, which helps visualize and identify the ASA (Angle-Side-Angle) or other relevant theorems.
Apply Theorems : My familiarity with geometric principles, often refreshed by reading test prep books or resources from Stanford University , comes in handy.
Test Different Approaches : I try different problem-solving techniques, using tools from the Get 800 collection or insights from the MindYourDecisions channel.
Check the Work : I always verify my answers to avoid common mistakes.
Here’s a quick reference I’ve created that might be handy:
Step | Action |
---|---|
1 | Read & understand the . |
2. | Draw the problem, and label known and unknown parts. |
3. | Apply geometric theorems and postulates. |
4. | Test approaches and with different problems. |
5. | Double-check answers for accuracy. |
The practice doesn’t just involve solving problems from books or test prep books ; it also includes explaining concepts to others, which could be classmates or a teacher .
In my journey of learning and teaching, I’ve found that discussing the process openly in a friendly manner greatly reinforces understanding. As with all things, especially something as logical as geometry, maintaining persistent practice and a can-do attitude is essential in mastering challenging problems.
In grappling with hard geometry problems , I’ve encountered numerous challenges that have pushed my understanding to new heights.
From the intricate relationships between angles to the deep insights required for problem-solving, these problems offer a true test of mathematical skill. Mathematical contests often feature such problems to differentiate between good and exceptional problem solvers.
One thought that stands out is the value of persistence and logic. In facing problems about finding an unknown angle or solving for a particular length, the approach isn’t merely about applying formulas.
It requires a creative combination of geometry principles, sometimes integrating concepts borrowed from other areas of mathematics, such as algebra or trigonometry.
Reflecting on famous problems, like those I’ve come across from various online platforms, it becomes clear just how beautiful and complex geometry can be.
These problems often serve dual purposes, they are not just queries to be answered but lessons that deepen my appreciation and understanding of mathematics. The journey through tough geometry questions is not only about reaching the correct answer but also about appreciating the intricacies of the geometric world.
I encourage my readers to embrace these difficult problems with a sense of adventure. Remember, tackling a geometry problem is more than a test; it’s an opportunity to explore the elegance of mathematics.
Whether you solve a challenging problem on the first try or it takes numerous attempts, each effort enhances your mathematical intuition and prowess.
- Pre Calculus
- Probability
- Sets & Set Theory
- Trigonometry
|
IMAGES
VIDEO
COMMENTS
Below you will find practice worksheets for skills including using formulas, working with 2D shapes, working with 3D shapes, the coordinate plane, finding volume and surface area, lines and angles, transformations, the Pythagorean Theorem, word problems, and much more. Each geometry worksheet was created by a math educator with the goal of ...
In these lessons, we will learn to solve geometry math problems that involve perimeter. Share this page to Google Classroom. Related Pages Geometry math problems involving area ... Step 3: Plug in the values from the question and from the sketch. 50 = x + x + x+ 5. Combine like terms 50 = 3x + 5. Isolate variable x 3x = 50 - 5 3x = 45 x = 15.
Khan Academy's 100,000+ free practice questions give instant feedback, don't need to be graded, and don't require a printer. Math Worksheets. Khan Academy. Math worksheets take forever to hunt down across the internet. Khan Academy is your one-stop-shop for practice from arithmetic to calculus. Math worksheets can vary in quality from ...
There are several online resources that you can use to practice geometry problems. Some of the popular online resources include: Khan Academy: On the free online learning platform Khan Academy, you may find practise questions and video lectures on a variety of subjects, including geometry.; Mathway: Mathway is an online tool that can solve various math problems, including geometry problems.
Learn geometry—angles, shapes, transformations, proofs, and more. ... Analytic geometry Problem solving with distance on the coordinate plane: Analytic geometry. Parallel and perpendicular lines on the coordinate plane: ... Community questions. Our mission is to provide a free, world-class education to anyone, anywhere.
Learn high school geometry—transformations, congruence, similarity, trigonometry, analytic geometry, and more. ... Circles Inscribed shapes problem solving: Circles Proofs with inscribed shapes: ... Community questions. Our mission is to provide a free, world-class education to anyone, anywhere. Khan Academy is a 501(c)(3) nonprofit ...
The use of geometry can be seen in both mathematics and everyday life. Thus, the fundamentals of this topic must be understood. The questions here will cover both the fundamentals and more difficult problems for students of all levels. As a result, students will be skilled in using it to solve geometry problems. Click here to learn more about ...
Take a guided, problem-solving based approach to learning Geometry. These compilations provide unique perspectives and applications you won't find anywhere else. Geometry Fundamentals. What's inside. Introduction. Angles and Lengths. Area. Pythagoras' Geometry. Scaling and Volume.
Geometry Basics: The 5 Simple Rules. Geometry basics will teach you the 5 simple rules needed to answer basic geometry questions, as well as give you the foundations to build as you work through the different geometry topics. Having basic algebra knowledge is required to solve geometry problems.
angle, right, straight line, point, full turn, vertically, opposite, basic, facts, triangle, quadrilateral
Here you will learn how to approach a textbook or test geometry problem, and how to identify the hints given in the question to guide you toward the right approach to solving it. Step-by-step, you will work through an extensive set of geometry problems and answers, and develop a better 'feel' for solving similar problems on your own.
Solution: Step 1: Assign variables: Let x = length of the equal side. Sketch the figure. Step 2: Write out the formula for . P = sum of the three sides. Step 3: Plug in the values from the question and from the sketch. 50 = x + x + x + 5. 50 = 3x + 5.
MathBitsNotebook Geometry Lessons and Practice is a free site for students (and teachers) studying high school level geometry. ... solving numerical and algebraic problems dealing with quadrilaterals. 1. Given: ... This question asks for the angle measure, not for just the value of x. 2.
Thousands of math problems and questions with solutions and detailed explanations are included. Free math tutorials and problems to help you explore and gain deep understanding of math topics such as: Algebra and graphing , Precalculus , Practice tests and worksheets , Calculus , Linear Algebra , Geometry , Trigonometry , Math Videos , Math From Grade 4 to Grade 12 , Statistics and ...
Grade 9 geometry problems and questions with answers are presented. These problems deal with finding the areas and perimeters of triangles, rectangles, parallelograms, squares and other shapes. Several problems on finding angles are also included. Some of these problems are challenging and need a good understanding of the problem before ...
1. Read & understand the geometry problem. 2. Draw the problem, and label known and unknown parts. 3. Apply geometric theorems and postulates. 4. Test approaches and practice with different problems. 5.
Immerse yourself in the world of geometry problem-solving with over 1500 illustrations and drawings. Explore definitions, theorems, and a vast array of geometry problems. From calculating segment DE length in Triangle ABC with a 45-degree angle to unraveling geometric mysteries in squares, circles, and parallelograms, these challenges cater to students from high school to college.
Unit 1 Introduction to algebra. Unit 2 Solving basic equations & inequalities (one variable, linear) Unit 3 Linear equations, functions, & graphs. Unit 4 Sequences. Unit 5 System of equations. Unit 6 Two-variable inequalities. Unit 7 Functions. Unit 8 Absolute value equations, functions, & inequalities. Unit 9 Quadratic equations & functions.
The Corbettmaths Practice Questions - a collection of exam style questions for a wide range of topics. Perfect to use for revision, as homework or to target particular topics. Answers and video solutions are available for each. Welcome; Videos and Worksheets; Primary; 5-a-day. 5-a-day GCSE 9-1; 5-a-day Primary; 5-a-day Further Maths;
Free math problem solver answers your algebra homework questions with step-by-step explanations. Mathway. Visit Mathway on the web. Start 7-day free trial on the app. Start 7-day free trial on the app. Download free on Amazon. Download free in Windows Store. Take a photo of your math problem on the app. get Go. Algebra. Basic Math. Pre-Algebra ...
Its input is question text in natural language and diagram in raster graphics, and its output is the answer to the question. Demos. G-Aligner: Aligning geometric entities in text and diagram. GeoS: Solving geometry problems. Papers. Solving geometry problems: combining text and diagram interpretation
1. What fraction of each circle is shaded? (The 12 dots are equally spaced; the only point used inside the circle is the centre.) "Unfortunately, my favourite one of the six is the only one I didn't come up with myself," says Catriona, "the dark blue one.". 2.
Because each question on the Math section deals with different numbers and mathematical scenarios, it's not as simple as the Reading and Writing section to identify exactly what each question stem will look like. ... Solve problems using definitions, properties, and theorems relating to circles, radii, diameters, tangents, angles, arc lengths ...
Pages in category "Olympiad Geometry Problems" The following 166 pages are in this category, out of 166 total. 1. 1959 IMO Problems/Problem 4; 1959 IMO Problems/Problem 5; ... Art of Problem Solving is an ACS WASC Accredited School. aops programs. AoPS Online. Beast Academy. AoPS Academy. About. About AoPS. Our Team. Our History. Jobs. AoPS ...
Research on Multimodal large language models (MLLMs) focuses on integrating visual and textual data to enhance artificial intelligence's reasoning capabilities. By combining these modalities, MLLMs can interpret complex information from diverse sources such as images and text, enabling them to perform tasks like visual question answering and mathematical problem-solving with greater accuracy ...
President Biden's disastrous debate performance last week set off a furious discussion among Democratic officials, donors and strategists about whether and how to replace him as the party's ...