Find the circumference C and the area A of a circle with radius r. Use ? ? 3.14.r = 3 mi

A. C = 9.42 mi, A = 37.68 mi2
B. C = 18.84 mi, A = 18.84 mi2 
C. C = 18.84 mi, A = 28.26 mi2 
D. C = 9.42 mi, A = 113.04 mi2 


Answer: C

Mathematics

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