document.write( "Question 1151345: A hollow steel tube is 30 ft. in length, 18 in. in diameter. Determine volume.\r
\n" ); document.write( "\n" ); document.write( "Volume = pi * height * (R^2 - r^2) R = larger radius r = smaller radius\r
\n" ); document.write( "\n" ); document.write( "V = 3.1416 * 30 * .75 * .75 * r smaller radius not given.\r
\n" ); document.write( "\n" ); document.write( "V = 53.0145 cu. ft.\r
\n" ); document.write( "\n" ); document.write( "Not sure of my calculations.
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #773098 by Alan3354(69443) $\"\"$ $\"About$

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A hollow steel tube is 30 ft. in length, 18 in. in diameter. Determine volume.\r
\n" ); document.write( "\n" ); document.write( "Volume = pi * height * (R^2 - r^2) R = larger radius r = smaller radius\r
\n" ); document.write( "\n" ); document.write( "V = 3.1416 * 30 * .75 * .75 * r smaller radius not given.\r
\n" ); document.write( "\n" ); document.write( "V = 53.0145 cu. ft.\r
\n" ); document.write( "\n" ); document.write( "Not sure of my calculations.
\n" ); document.write( "=================
\n" ); document.write( "Vol = pi*30*(0.75^2 - r^2) cubic feet
\n" ); document.write( "= 30pi*(0.5625 - r^2) cf --- r < 0.75
\n" ); document.write( "=============
\n" ); document.write( "You can't get a number without knowing r
\n" ); document.write( "------------------
\n" ); document.write( "If you ignore the wall thickness,
\n" ); document.write( "Vol = pi*30*0.75^2 cubic feet = the number you have. \n" ); document.write( "

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