A tower has a cone-shaped attic. The diameter of the attic is 18 ft and its height is 18 ft. What is the volume of the space in the attic? Enter your answer as a decimal in the box. Use 3.14 for pi.

Question

16 October, 21:15

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Answers (2)

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Wyatt Reilly · Answer 1

Volume of a cone=Pi*r^2 h/3. So the radius will equal 9, since it is half of the diameter. So 3.14 * (9^2) * (18/3) = 3.14*81*6 = 1526.81 feet

Adan Leach · Answer 2

Vcone = (1/3) hpir^2

d/2=r

18/2=d/2=9=r

h=18

v = (1/3) (18) (pi) (9^2)

V = (6) (pi) (81)

V=486pi

V=1526.04 ft³