Video

Intro to the Pythagorean theorem (Full video)

Khan Academy

Supporting grades: 8

Description: Sal introduces the famous and super important Pythagorean theorem! Created by Sal Khan. Let me tell you what the Pythagorean theorem is. So that right there is a 90 degree angle. Now, with the Pythagorean theorem, if we know two sides of a right triangle we can always figure out the third side.

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