SOLUTION: A metal pipe of length 35cm .The internal and external diameters of the pipe are 20mm and 28mm respectively.Find the volume of metal used in making the pipe,giving your answer in c

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Question 1159940: A metal pipe of length 35cm .The internal and external diameters of the pipe are 20mm and 28mm respectively.Find the volume of metal used in making the pipe,giving your answer in cubic centimeters.
Found 2 solutions by josgarithmetic, ikleyn:
Answer by josgarithmetic(39620) About Me  (Show Source):
Answer by ikleyn(52814) About Me  (Show Source):
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    Volume = %28pi%2A%282.8%2F2%29%5E2+-+pi%2A%282.0%2F2%29%29%2A35%29 = 3.14%2A35%2A%281.4%5E2+-+1%5E2%29 = 105.504 cubic centimetres.    ANSWER

Solved.