What is the circumference of this circle, in centimeters? Use 22/7 for Pi.
A. 33
B. 66
C. 207.4
D. 346.5
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Answer: 66cm
Step-by-step explanation:
Diameter (d) = 21 cm
c= πd = 22/7 x 21 = 22 x 3 = 66cm