SOLUTION: A six inch diameter copper pipe water riser fifty feet tall is full of water and needs to be drained down how many gallons will be drained

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Question 456416: A six inch diameter copper pipe water riser fifty feet tall is full of water and needs to be drained down how many gallons will be drained
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
V=pi*r^2*h
V=3.14*0.0625*50
V=9.8125 cu ft
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9.8125*7.48=73.40 gallons