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A right circular cone has a volume of $12\pi$ cubic centimeters. The height of the cone is 4 cm. How many centimeters is the circumference of the base of the cone, in terms of $\pi$?

thatguitarist  Jul 3, 2018
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volume of a cone is 1/3*pi*r^2* h

 

12pi = 1/3*pi*r^2*4

r=3

 

circumfrence is pi*2r

 

circumfrence = 6pi

Guest Jul 3, 2018

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