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30-04-2017
Mathematics

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A water tank is in the shape of a right circular cylinder with a height of 20 feet volume of 320pi cubic feet. what is the diameter, in feet, of the water tank

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02-05-2017

V=hpir^2

given
v=320pi
h=20
and
2r=d

320pi=20pir^2
divide both sides by 20pi
16=r^2
sqrt both sides
4=r

2r=d
2(4)=d=8

dameter=8ft

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