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Both legs of a right triangle are equal, and its hypotenuse is $82$ cm.
What is the length of each leg?

Class 7Pythagoras PropertyTriangles

A8
B9
C16
D7

Step-by-Step Solution

Let each leg be a. Then

a^{2} + a^{2} = (82)^{2}

, so 2

a^{2} = 128, a^{2} = 64, a = 8

cm.

Answer: A) 8

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