SOLUTION: Hi. Would you please tell me how long I need to make a pipe container to hold 57 litres of milk if the pipe is 8 inches id. Thanks John

Question 733785: Hi. Would you please tell me how long I need to make a pipe container to hold 57 litres of milk if the pipe is 8 inches id.
Thanks
John
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Did you mean 8 inches in diameter? If so, then the radius is 8/2 = 4, so r = 4.

57 liters = 3478.35 cubic inches ----> V = 3478.35

V = pi*r^2*h

3478.35 = pi*4^2*h

3478.35 = 16pi*h

3478.35/16pi = h

h = 3478.35/16pi

h = 682.972425413379

So the pipe must be roughly 682.972425413379 inches long.
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