Solve the Problem $56.5 \mathrm{ft}^{3}$ What Dimensions Yield the Minimum Surface Area? Round to Rectangular

Multiple Choice

Solve the problem.
-A company is constructing an open-top, square-based, rectangular metal tank that will have a volume of $56.5 \mathrm{ft}^{3}$ . What dimensions yield the minimum surface area? Round to the nearest tenth, if necessary.

A) $10.6 \mathrm{ft}$ by $10.6 \mathrm{ft}$ by $0.5 \mathrm{ft}$
B) $4.8 \mathrm{ft}$ by $4.8 \mathrm{ft}$ by $2.4 \mathrm{ft}$
C) $5.5 \mathrm{ft}$ by $5.5 \mathrm{ft}$ by $1.8 \mathrm{ft}$
D) $3.8 \mathrm{ft}$ by $3.8 \mathrm{ft}$ by $3.8 \mathrm{ft}$