Not Zero
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Not Zero

Proving the Pythagorean Theorem

Some algebraic and geometric proofs of the best-known theorem of all time

A right triangle is a triangle in which one of the three angles is 90°. The triangle shown below is right-angled because the angle ⦣ACB between sides a and b is 90°. The side opposite the right angle, c, is called the hypotenuse.

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