The volume of a cylinder is 540π ft3. The height is 15 ft. What is the diameter of the cylinder? A.) 12 ft B.) 24 ft C.) 6 ft D.) 36 ft

asked Dec 16, 2018 78.7k views

4 votes

The volume of a cylinder is 540π ft3. The height is 15 ft. What is the diameter of the cylinder?

A.) 12 ft
B.) 24 ft
C.) 6 ft
D.) 36 ft

by Kgd

6.6k points

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2 votes

The answer is (A) 12 ft

.......................................

Fima answered Dec 18, 2018

by Fima

6.5k points

6 votes

d = 2r

V = A*h

540π = πr²*h

540 = (d/2)²*15

540 = d²/4*15

540*4 = 15d²

d² = 2160 / 15

d² = 144

d = √144

d = 12 ft

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