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Sciences > Mathematics Understanding the Pythagorean theorem

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The Pythagorean theorem is a theorem encountered in geometry and is a very useful way to determine the lengths of the sides of a right triangle. A right triangle is a triangle with a 90 degree or "right" angle. The other two angles will add up to 90 degrees since all triangles have their angle measures adding up to 180.

Think of the right triangle having 3 sides, 2 of which called "legs" form the right angle and the side opposite the right angle, called the hypotenuse. In words the Pythagorean theorem is length of a leg squared plus length of the other leg squared equals the hypotenu...

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