document.write( "Question 434124: Sir what will be formula of a tube when its Outer Dia , Thickness is given is is pi*O.D*Length or Pi*(O.D+2t)*Length Or Pi*(O.D*t)*L please help me out \n" ); document.write( "
Algebra.Com's Answer #300842 by Alan3354(69443)\"\" \"About 
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If you mean the volume of the tube's material, it's the volume of the cylinder with the OD minus the volume of the cylinder with the ID.
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\n" ); document.write( "\"V+=+pi%2Ar1%5E2%2Ah+-+pi%2Ar2%5E2%2Ah\" r1 = radius of the outside, r2 = inside
\n" ); document.write( "\"V+=+pi%2Ah%2A%28r1%5E2+-+r2%5E2%29\"
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