The hypotenuse of a 45°-45°-90° triangle measures 24 inches. What is the length of one of the legs of the triangle?

In a 45°-45°-90° triangle, the hypotenuse equals a leg times √2. So one leg is 24 ÷ √2 = 12√2 inches (about 17 inches). The correct choice is B, 12√2 in.

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