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To find the length of a hypotenuse (the side of a triangle opposite to the right angle) you need the two shorter sides lengths which i will call A and B.

X2=A2+B2

X2=A+B

X2=(A+B)

X=Find the square root of (A+B)

X=The square root of (A+B)

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Q: How do you find the length of a hypotenuse?
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