# The Pythagorean Theorem And The Greek Mathematician Pythagoras

The Pythagorean Theorem states that the sum of the length of the two other sides of a right angle squared will equal the square length of the hypotenuse (the longest side). In other words, a2+b2=c2, a and b being the shorter sides, and c being the long side (Khan Academy, 2010).

The Pythagorean Theorem was, in fact, one of the earliest theorems know to ancient civilizations (Morriss, 1997). An old Babylonian tablet (1900-1600 BC), predating Pythagoras by over 1000 years, called the Plimpton Tablet, lists the numbers that satisfy the so-called Pythagorean Theorem. The middle columns read:

“4 is the length and 5 the diagonal

What is the breadth?

Its size is not known.

4 times 4 is 16.

5 times 5 is 25.

You take 16 from 25 and there remains 9.

What times what shall I take in order to get 9?

3 times 3 is 9. 3 is the breadth.”( Babylonian Pythagoras, 2000).

The formula used would translate into a2+b2=c2. In addition, a Chinese astronomical and mathematical essay was found predating Pythagoras and contained a geometrical explanation of the theorem. (Jabcobsen, 2011). Another ancient source of the Pythagorean Theorem was found in ancient Indian Sulbasutras, or…