MathML Pythagorean Theorem

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a 2 + b 2 = c 2 We can prove the theorem algebraically by showing that the area of the big square equals the area
of the inner square (hypotenuse squared) plus the area of the four triangles:
(a + b)2 = c2 + 4(1 2)a b a2 + 2ab + b2 = c2 + 2ab a2 + b2 = c2

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