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15 and 20 inches because these dimensions comply with Pythagoras' theorem and the area of the rectangle.

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Q: What are the dimensions of a rectangle whose diagonal is 25 inches and has an area of 300 square inches?
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How what are the dimensions of a rectangle if a diagonal line from corner to corner is 100 inches?

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How long is the diagonal of a rectangle with dimensions 7in by 10in?

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