A Brief History of Pythagorus and the Pythagorean Theorem • Pythagorus was born on the island of Samos in ancient Greece. • We don’t know the exact year that he was born, but it is believed that he was born around 570 B.C. • That’s almost 2580 years ago. • Pythagorus traveled to Egypt and studied astronomy, philosophy, and geometry with Egyptian priests. • By the time he was 55, he had returned to Greece and started a school. • Pythagorus was the head of a secret group of men who worshipped numbers. They tried to find a mathematical explanation for music, and the heavens. The Pythagorean Theorem Pythagorus was believed to be the first person to prove that this rule worked. “In a right triangle, the sum of the squares of the legs is equal to the square of the hypotenuse.” Vocabulary Words Legs – the two shorter sides of a right triangle Hypotenuse – the longer side of a right triangle hypotenuse leg leg We’ll call the LEGS – “a” and “b” and the HYPOTENUSE – “c”. 2 a + 2 b = 2 c

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# The History of Pythagorus and the Pythagorean Theorem

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