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The perimeter of a square is 64 millimeters. What is the length of each side?8 mm12 mm16 mm32 mm

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Recall that the perimeter of a square is determined by the formula


\begin{gathered} 4s=P_{\text{square}} \\ \text{where} \\ s\text{ is the side length of the square} \end{gathered}

Given that the perimeter is 64 mm, using the formula the side is calculated as


\begin{gathered} 4s=P \\ 4s=64 \\ (4s)/(4)=(64)/(4) \\ s=16\text{ mm} \end{gathered}

Therefore, the length of each side of the square is 16 mm.

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