One leg of a right triangle is 4 ft long and the hypotenuse is 5 ft long. Ritchie uses 4squared+5squared…

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One leg of a right triangle is 4 ft long and the hypotenuse is 5 ft long. Ritchie uses 4squared+5squared to find the length of the other leg. Is Ritchie correct in his approach? Why or why not?

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