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What is the length of the hypotenuse of a right triangle with legs of lengths 9 and 12 rounded to the nearest tenth?
Wiki User
∙ 9y ago
9.0
Shanie Mills
Wiki User
∙ 9y agoThe answer is 15.
Just remember than when you have a right triangle the length of the square of the hypotenuse (longest side) is the sum of the squares of the other 2 sides.
So we take (9^2)(12^2)=hypotenuse^2
81x144 = hypotenuse^2
225 = hypotenuse^2
square root of 225 = hypotenuse
15 = hypotenuse
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