Pythagorean+Theorem

It all started when a Greek scholar named Pythagoras, who lived around 500 BC, became interested with triangles with special side ratios. He found that if you took the two shorter sides of these special triangles and squared them, and then added them together, they would exactly equal the square of the longest side. Within a short time he had also proven that this formula extends to all right triangles. At that point in history, letters were not yet used to replace variables(the mathematician Vieta introduced that idea in the 16th century). They wrote down everything in words instead. An example of this is the pythagorean theorm:__If you have a right triangle, the squares of the two sides adjacent to the right angle will always be equal to the square of the longest side__. It has not been proven that Pythagoras was the first person to discover this formula since no texts written by him have survived into the present day. In fact, it has not been proven that Pythagoras even lived at all! Today this theorem plays an important role in many fields of modern mathematics including Geometry, Algebra, and Trigonometry.