Do these exercises along with us. Remember what you've learned about perpendicular lines, and right, obtuse, and acute triangles.

This module explains a proof of the Pythagorean Theorem developed by James Garfield, the twentieth president of the United States.

Learn that there are multiple ways to solve for the angles of multiple triangles.

Learn how to use angle measurement and side length to classify triangles as scalene, isosceles, equilateral, acute, right, or obtuse.

Learn how to find the volume of a cone.

Learn about the Pythagorean Theorem and how it is used.

This module delves a little deeper into acute, obtuse, and right angles.

This word problem asks you to use the Pythagorean Theorem to calculate that length of the rope that attaches the mast of a fishing boat to its deck.

This module shows you how to prove the Pythagorean Theorem visually.

Practice categorizing triangles as obtuse, acute, equilateral, and right.