document.write( "Question 930208: the volume V of a right circular cylinder of height h and radius r is V = pir^2h. if the height is twice the radius, express the volume v as function r. \n" ); document.write( "
Algebra.Com's Answer #564763 by Hawksfan(61)\"\" \"About 
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V = pi* r^2 * h\r
\n" ); document.write( "\n" ); document.write( "if h = 2r \r
\n" ); document.write( "\n" ); document.write( "V = pi * r^2 * 2r\r
\n" ); document.write( "\n" ); document.write( "V= 2pi * r^3\r
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\n" ); document.write( "\n" ); document.write( "Note: r^2 *r^1 = r^3
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