Which statement must be true for triangle MNP to be a right triangle?     A The sum of the areas of squares A and B is equal to twice the area of square C.     B The sum of the perimeters of squares A and B is equal to the perimeter of square C.     C The sum of the perimeters of squares A and B is equal to twice the perimeter of square C.     D The sum of the areas of squares A and B is equal to the area of square C.

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A: See attached file for a step by step explanation.

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A: The solution is :

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