A right triangle has legs that are 10.1 inches and 12.2 inches long. What is the approximate length of the hypotenuse?

Use the Pythagorean theorem: the hypotenuse length is √(10.1² + 12.2²). The squares add to 102.01 + 148.84 = 250.85, and √250.85 is about 15.8 inches. So the approximate length is 15.8 inches.

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