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28-07-2016
Mathematics

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The volume of a cone is 16 pie cubic inches. Its height is 12 inches. What is the radius of the cone?

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29-07-2016

V=(1/3)hpir^2
V=16pi
h=12

16pi=(1/3)12pir^2
16pi=4pir^2
divide both sides by 4pi
4=r^2
sqrt both sides
2=r

answer is A

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