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20 November, 19:12

A cone with a radius of 3" has a total area of 24 pi sq. in. Find the volume of the cone.

24 pi

15 pi

12 pi

+1
Answers (1)
  1. 20 November, 23:07
    0
    12pi is he answer.

    Pi. r. l+pir^2=24pi

    r=3 if you plug this you get l=5

    h^2+r^2=l^2

    so h=4

    V = (1/3) pir^2. h = (1/3) pi. 9.4=12pi
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