The ancient Greeks gave many contributions to the western civilization. They gave the Pythagorean Theory, Hippocratic Oath, limited democracy and more. Today those contributions benefit us.
Pythagoras gave the Pythagorean Theory to us. He made a formula (a2+b2=c2); this formula is used to calculate the relationship between the sides of a right triangle. Euclid was a Greek mathematician and is often called the father of geometry. He put together, scientifically arranged, and wrote portions of the mathematics textbook Elements. Very little is known about Euclid's life. The place and date of his birth are uncertain, though it is known that he taught mathematics at the Museum, an institute in Alexandria, Egypt
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