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Easy Pythagorean Theorem Proofs and Problems

In this lesson we will investigate easy Pythagorean Theorem proofs and problems.

The Pythagorean Theorem takes place in a right triangle. The longest side in a right triangle is called hypotenuse, and the other two sides are called legs. The hypotenuse opposes the right angle.

In the following picture, a and b are legs, and c is the hypotenuse.

According to the Pythagorean Theorem:

Watch the following video to see a simple proof of this theorem:

The Pythagorean Theorem is one of the most important theorems in geometry. You can use it to find the unknown side in a right triangle, and to find the distance between two points.

Watch the following video to learn how to apply this theorem when finding the unknown side or the area of a right triangle:

Return from Easy Pythagorean Theorem Proofs to Free Math Videos Online or to 8th grade CRCT math

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