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What is the area of a square with a diagonal length of 15 times the square root of 2

Question

What is the area of a square with a diagonal length of 15 times the square root of 2
What is the area of a square with a diagonal length of 15 times the square root of 2?

Answers

The diagonal of a square is the side times sqrt 2 (Pythagorean theorem)
so
the side here is 15 so the area is 15^2 = 225


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