Answers

The Brainliest Answer!
2016-01-23T20:40:03+05:30
Volume of pipe(hollow cylinder) = πR²h - πr²h
Where R is outer circle and r is inner circle.
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2016-01-23T20:49:45+05:30
volume=πR²h - πr²h
          =πh(R² - r²)
R is the radius of outer circle
r is the radius of inner circle
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