GMAT Geometry

In this module, you'll learn all of the concepts, techniques and strategies needed to answer geometry questions on the GMAT. In particular, this module covers:

Lines and angles
Isosceles and equilateral triangles
Right triangles
Special triangles
Similar triangles
Quadrilaterals

Circles: area & circumference
Circles: sectors & arcs
Circles: inscribed angles
Circles: tangent lines
Cylinders
Surface area & volume

GMAT GEOMETRY VIDEOS

1. Lesson: Lines and Angles (7:18)
2. Question: 3x-5 (2:10)
3. Lesson: Triangles - Part I (5:55)
4. Question: Is w>x? (2:40)
5. Question: x in terms of y (3:26)
6. Lesson: Assumptions and Estimation on the GMAT (4:42)
7. Lesson: GMAT Geometry Strategies - Part I (1:07)
8. Lesson: Triangles - Part II (8:15)
9. Question: Bit of Everything (1:46)
10. Lesson: Right Triangles (9:18)
11. Question: Rectangle’s height (2:10)
12. Question: 3-D Diagonal (3:02)
13. Lesson: Special Right Triangles (6:42)
14. Question: 3 Triangles (3:53)
15. Lesson: Similar Triangles (4:28)
16. Question: Triangles with Intersection (2:16)
17. Lesson: Quadrilaterals (5:50)
18. Lesson: Polygons (3:17)
19. Lesson: Circles (4:47)
20. Question: Circle Area with Triangle (2:39)
21. Lesson: Pieces of Pi (3:37)
22. Question: Intersection and Arc (1:54)
23. Lesson: Circle Properties (3:36)
24. Question: Circle with Parallel Lines (3:00)
25. Lesson: Volume and Surface Area (6:44)
26. Lesson: Units of Measurement (1:56)
27. Lesson: Tackling Data Sufficiency Questions (7:51)
28. Lesson: GMAT Geometry Strategies - Part II (1:54)
29. Question: Parallel or Not (1:30)
30. Question: Value of x (1:33)
31. Question: Tangent Line (2:08)
32. Question: Possible Right Angle (2:04)
33. Question: Tilted Triangle Area (2:13)
34. Question: Parallelogram Perimeter (2:16)
35. Question: Triangle with Variable Angles (1:44)
36. Question: Cylinder Surface Areas (1:37)
37. Question: Is x less than 80 degrees? (2:06)
38. Question: Comparing Areas (2:24)
39. Question: Triangle Area (4:09)
40. Question: Value of w (3:06)
41. Question: Diagonal of Rectangle (2:56)
42. Question: Intersecting Circles (3:44)

Total viewing time for the GMAT Geometry module: 150 minutes.

Additional Practice

Each of the above video lessons features a Reinforcement Activities box containing practice questions that are specifically related to the particular concepts covered in that lesson (e.g., the lesson on Right Triangles). On the other hand, the links below will take you to practice questions that test a wide variety of questions under the general topic of Geometry. Given this, you may find it beneficial to work on the questions below AFTER you’ve mastered the content in the Geometry module above.

- Official GMAT questions about Geometry - Problem Solving

- Official GMAT questions about Geometry - Data Sufficiency

Change Playback Speed

You have the option of watching the videos at various speeds (25% faster, 50% faster, etc). To change the playback speed, click the settings icon on the right side of the video status bar.

Practice Wisely

While solving GMAT quant questions, always remember that your one goal is to identify the correct answer as efficiently as possible, and not to please your former math teachers.