Pythagorean Theorem

Pythagoras was a Greek philosopher who made important developments in mathematics, astronomy, and the theory of music. The theorem now known as Pythagoras's theorem was known to the Babylonians 1000 years earlier but he may have been the first to prove it.
Pythagorean Theorem is The sum of the areas of the two squares on the legs (a and b) equals the area of the square on the hypotenuse (c).