Circumference = 2*pi*radius or pi*diameter
Circumference = 87.9645943 or 88 cm to the nearest cm
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The radius is: 6.267 cm
Assuming that "it" refers to diameter, the radius is 7 cm and the circumference is 44.0 cm.
C=2 pi R
A cone with a base radius of 9.9 cm and a height of 14 cm has a volume of 1,436.9 cm3
14(22/7+2) =2(22+2) =44+4 =48