document.write( "Question 888119: Find the volume of the metal used in a hollow cylinder open at both ends whose external diameter is 28 cm, thickness 3.5 cm and height 10 cm. \n" ); document.write( "
Algebra.Com's Answer #537081 by lwsshak3(11628)\"\" \"About 
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Find the volume of the metal used in a hollow cylinder open at both ends whose external diameter is 28 cm, thickness 3.5 cm and height 10 cm.
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\n" ); document.write( "internal diameter=28-3.5=24.5 cm
\n" ); document.write( "volume= internal area of end*height
\n" ); document.write( "area of end=πd^2/4, d=diameter
\n" ); document.write( "Volume=π*d^2/4)*10
\n" ); document.write( "=π(24.5)^2/4*10=1500.625π
\n" ); document.write( "=4714.35 cm^3
\n" ); document.write( "..
\n" ); document.write( "external diameter=28 cm
\n" ); document.write( "volume= external area of end*height
\n" ); document.write( "area of end=πd^2/4, d=diameter
\n" ); document.write( "Volume=π*(d^2/4)*10
\n" ); document.write( "=π(28)^2/4*10=1960π
\n" ); document.write( "=6167.52 cm^3
\n" ); document.write( "..
\n" ); document.write( "6167.52-4714.35=1453.17 cm^3
\n" ); document.write( "volume of the metal used in a hollow cylinder=1453.17 cm^3 \n" ); document.write( "
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