Video Lesson: Quadrilaterals

Khan Academy teaches you about quadrilaterals and defines the following terms: trapezoid, rectangle, parallelogram, square, and rhombus. 

Video Lesson: Triangles

Khan Academy tests your current knowledge of triangle classification in a short practice session.

Video Lesson: Volume

Khan Academy gives you an introduction to volume by explaining its makeup of unit cubes and covers the strategies used to find the volume of rectangular prisms.

Estimating Angles:

Test your angle estimation skills in this game.

Compare Area & Perimeter

of 2 Figures: Can you tell the difference?

Guess the Shape:

Use the given clues to guess the correct 2D shape.

More Games:

Choose from a variety of geometry games here.