document.write( "Question 765475: A cylindrical pipe has length L, inner radius I, and overall radius R. What is the volume of the pipe material? \n" ); document.write( "

Algebra.Com's Answer #466187 by jim_thompson5910(35256) $\"\"$ $\"About$

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\n" ); document.write( "Volume of Outer Cylinder\r
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\n" ); document.write( "\n" ); document.write( "V = pi*r^2*h\r
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\n" ); document.write( "\n" ); document.write( "V = pi*R^2*L\r
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\n" ); document.write( "\n" ); document.write( "Volume of Inner Cylinder\r
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\n" ); document.write( "\n" ); document.write( "V = pi*r^2*h\r
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\n" ); document.write( "\n" ); document.write( "V = pi*I^2*L\r
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\n" ); document.write( "\n" ); document.write( "Difference:\r
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\n" ); document.write( "\n" ); document.write( "pi*R^2*L - pi*I^2*L\r
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\n" ); document.write( "\n" ); document.write( "pi*L(R^2 - I^2)\r
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\n" ); document.write( "\n" ); document.write( "So the volume of the pipe material (ignore the empty space) is pi*L(R^2 - I^2)\r
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