A square region has an area of $b$ square inches and a perimeter of $n$ inches. If $n = \dfrac{b}3$ what is the

A square region has an area of $b$ square inches and a perimeter of $n$ inches. If $n = \dfrac{b}3$ what is the length, in inches, of the side of the square?

A. $12$
B. $12\sqrt2$
C. $48$
D. $48\sqrt2$
E. $144$

Answer: A

Source: Princeton Review

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