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    Pythagorean theorem

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    • 1. 畢達哥拉斯定理；畢氏定理；勾股定理 The Pythagorean theorem is an important theory in Geometry. Basically, it means that in a right triangle, the sum of the square of the two legs equals the square of the hypotenuse. 畢氏定理是幾何學上一個很重要的定理。基本上，它是說在一個直角三角形之中，兩個股的平方和等於斜邊的平方。

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