Geometry made completely easy!

Get better math marks with our complete Geometry help, whether it’s Geometry common core standards, Geometry EOC, or EngageNY Geometry (Regents Examination). We've got you covered!

Keeping with your class or textbook, our thorough help for Geometry includes topics such as Similar triangles, Geometry proofs, right triangle trigonometry, 3D shapes, Triangle geometry, Midpoint, Surface area of circles, Translations, and more. Learn the concepts with our video tutorials that show you step-by-step solutions to even the hardest geometry problems. Then, strengthen your understanding with tons of geometry practice.

All our lessons are taught by experienced Geometry teachers. Let’s finish your homework in no time, and ACE that final.

  • Meet Andy, your Geometry tutor
  • Watch how we take you through a lesson
  • Learn how to find and search for topics
Common Questions
My Geometry textbook is by McDougal Littell. Can your geometry course help?

Of course! We cover all the topics in your textbook. Our geometry class also contains help on all materials you will find in other common textbooks, such as Holt McDougal Geometry, Glencoe Geometry, Prentice Hall Geometry, and Pearson textbook.

I am taking high school geometry. How do I know if this course is relevant to what I am learning from school?

We follow the Geometry common core standards closely when designing the course. Therefore, you will be able to find the geometry help on any topics which are taught in your school.

What are the prerequisites for Geometry?

Course taken before this class is either Algebra 1 or Basic Algebra and after you mastered Geometry, you can follow up with courses like Algebra 2 or Trigonometry.

Customer Reviews
4.7 stars based on 7 total reviews
Lucas Rowe

I’m so happy with this site! I got an A with StudyPug’s geometry help! Really love the examples and it’s easier to understand than my geometry textbook.

Amanda Neill

I can’t recommend StudyPug enough to other parents whose children aren’t the strongest at math! The geometry textbook can only help so much when my daughter doesn’t understand how to go through high school geometry problems. I’ve seen her review topics she didn’t quite grasp at school straight from StudyPug and it’s a relief that I can provide her with something so simple and affordable, but does wonders for her math marks!

Joan Everling

Geometric shapes didn’t come easily to my son and although he did fine in most subjects in math, he struggled with geometry problems. I’m glad that we found StudyPug and he often has it open when he’s doing his homework to accompany his textbook. He’s also able to get help right at home!

Richard Long

I actually understand geometric shapes now! How to define congruent triangles, proving them... that’s just the beginning of what I’m able to do now with geometry! It’s crazy because I went from a C to an A. Thanks StudyPug!

Stella S.

My son chose to take StudyPug over his summer last year rather than us enrolling him in summer school. We weren’t sure if this would turn out badly, but we gave it a try. He went through “what is geometry” before school started and did wonderfully through the rest of his school year. He also found it to be a lot more flexible since he could do it all from home at his own pace and time. We’ll be going with StudyPug again this summer!

Patrick Tucker

I was looking around online before my test for geometric math problems and I found this place. I’m so glad my mom got me a subscription to StudyPug! Using it before all my tests now!

Terry Berger

This place is way easier to understand than my geometry textbook. I think the teachers here are very good and I can try lots of practice problems too. Videos are also way better than reading a math book!

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Geometry Topics

We have plenty of free lessons for you to watch

1.Measuring Systems

1.1Conversions between metric and imperial systems
1.2Metric systems in measuring systems (free lessons)
1.3Imperial systems in measuring systems
1.4Conversions involves squares and cubes

2.Surface Area and Volume

2.1Surface area and volume of prisms (free lessons)
2.2Surface area and volume of cones (free lessons)
2.3Surface area and volume of spheres
2.4Surface area and volume of cylinders
2.5Surface area and volume of pyramids

3.Points, Lines, Segments, Midpoints and Chords

3.1Midpoint formula: M=(x1+x22,y1+y22)M = ( \frac{x_1+x_2}2 ,\frac{y_1+y_2}2) (free lessons)
3.2Chord properties in circle geometry
3.3Distance formula: d=(x2−x1)2+(y2−y1)2d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2} (free lessons)
3.4Slope-Y-intercept form: y = mx + b (free lessons)
3.5Graph using a single point and slope
3.6Solve linear equations (free lessons)

4.Circles, plane and coordinate

4.1Circles and circumference
4.2Arcs of a circle
4.3Areas and sectors of circles
4.4Angles in a circle (free lessons)
4.5Chord properties in circle geometry
4.6Tangent properties in circle geometry
4.7Central angles and proofs
4.8Inscribed angles and proofs
4.9Central and inscribed angles in circles
4.10Circle chord, tangent, and inscribed angles proofs

5.Triangles and special triangles

5.1Pythagorean theorem (free lessons)
5.2Solving expressions using 45-45-90 special right triangles (free lessons)
5.3Solving expressions using 30-60-90 special right triangles
5.4Classifying triangles
5.5Congruence and congruent triangles
5.6Triangles congruent by SSS proofs
5.7Triangles congruent by SAS and HL proofs
5.8Triangles congruent by ASA and AAS proofs
5.9Isosceles and equilateral triangles

6.Angles and trigonometry

6.1Use sine ratio to calculate angels and side (Sin = oh)\frac{o}{h}) (free lessons)
6.2Use cosine ratio to calculate angles and side (Cos = ah \frac{a}{h} )
6.3Use tangent ratio to calculate angles and side (Tan = oa \frac{o}{a} )
6.4Combination of SohCahToa questions (free lessons)
6.5Solving expressions using 45-45-90 special right triangles (free lessons)
6.6Solving expressions using 30-60-90 special right triangles
6.7Word problems relating ladder in trigonometry
6.8Word problems relating guy wire in trigonometry
6.9Other word problems relating angles in trigonometry

7.Sine Rule and Cosine Rule

7.1Law of sines
7.2Law of cosines
7.3Applications of the sine law and cosine law

8.Transformations

8.1Line symmetry (free lessons)
8.2Rotation symmetry and transformations

9.Quadrilaterals

9.1Surface area of three-dimensional objects (free lessons)

10.Similarity

10.1Scale diagrams
10.2Similar triangles

11.2D figures and 3D figures

11.1Tessellations using rotations
11.2Surface area of three-dimensional (3D) objects (free lessons)
11.3Nets of three-dimensional objects

12.Probability

12.1Probability of independent events
12.2Permutations
12.3Fundamental counting principle
12.4Solve problems involving both permutations and combinations
12.5Probability with Venn diagrams

13.Set Theory

13.1Set builder notation

14.Vectors

14.1Introduction to vectors
14.2Magnitude of a vector
14.3Direction angle of a vector
14.4Equivalent vectors
14.5Adding and subtracting vectors in component form

15.Angles, lines and transversals

15.1Pairs of lines and angles
15.2Parallel lines and transversals
15.3Parallel line proofs
15.4Perpendicular line proofs (free lessons)
15.5Parallel line equations (free lessons)
15.6Parallel and perpendicular lines
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Testimonial: Yolanda Ortega
Yolanda Ortega
Geometry, Franklin High, Los Angles, CA
"StudyPug is so convenient. I can use you on my phone even when I study with my friends at school.”
Testimonial: Sofia Cole
Sofia Cole
Geometry, Hastings High, Houston, TX
StudyPug makes geometry so easy! I had a hard time catching up with my class before I started using you guys. Your lessons are so easy to follow and understand. I can find my answers in no time. I have told all my friends about you, lol. Keep up with the good work guys!
Testimonial: Nancy Baker
Nancy Baker
Parent of geometry student, Cleveland, OH
"We needed something that was convenient and cost effective. StudyPug meets all our needs. My son just needs his laptop or iPad and he can study.”
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