A circle has circumference of 56.52 ft. What is its area? Use 3.14 for pie.

4 answers

C = pi * d
56.52 = 3.14d
56.52/3.14 = d
? = d

A = pi * r^2

I'll be glad to check your answer.
I got 18, but my only choices are 28.26 , 56.52 , 254.34 , or 1,017.36
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18