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The Pythagorean Theorem and Ladders

Diagram of ladder leaning up against house with distances drawn Think of the ladder as the hypotenuse of a right triangle. Since you know the length of the other two sides of the triangle, use the Pythagorean theorem to find the length of the hypotenuse: (10)2 + (25)2 = c2

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Andrew Wiles | Math's Hidden Woman | Pythagorean Puzzle
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