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If the length of a rectangle is 12 and the width of the rectangle is 16, by the Pythagorean theorem we know that one diagonal is 20 units long.

You can draw two diagonals within a rectangle, so the length of both diagonals together is 20+20 = 40 units.

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Q: What is the sum of the length of the diagonals of a 12 by 16 rectangle?
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