Most people don’t remember math class, but they do remember Pythagoras. Greek philosopher and mathematician, he is credited with one of the handiest formulae any school student could know: A squared ...

(CNN) -- Over 1,000 years before Pythagoras was calculating the length of a hypotenuse, sophisticated scribes in Mesopotamia were working with the same theory to calculate the area of their farmland.

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An addition to the Math Adventure series, What's Your Angle, Pythagoras? by Julie Ellis, illus. by Phyllis Hornung, tells a fictional tale of the future Greek philosopher and mathematician. Ellis ...