Find the Area $\pi \approx 3.14$ When Needed $15 \mathrm{ft}^{2}$ B) $36 \mathrm{ft}^{2}$

Multiple Choice

Find the area. Use $\pi \approx 3.14$ when needed.
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A) $15 \mathrm{ft}^{2}$
B) $36 \mathrm{ft}^{2}$
C) $18 \mathrm{ft}^{2}$
D) $16 \mathrm{ft}^{2}$