To solve for A using the Pythagorean theorem, we can rearrange the formula to isolate A:
A^2 = 82in^2 - 18in^2
A^2 = 64in^2
Taking the square root of both sides to solve for A:
A = √64in^2
A = 8in
Therefore, the length of side A is 8 inches.
Use the Pythagorean theorem
A^2+ 18in^2= 82in^2
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