document.write( "Question 257435: A cone sits on top of a cylinder. Both have a radius of 3. The heights of the
\n" ); document.write( "cylinder and cone are 8 and 4 respectively. Determine the exact volume of the
\n" ); document.write( "combined solid.
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Algebra.Com's Answer #189382 by drk(1908)\"\" \"About 
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Lets first find the volume of the cylinder.
\n" ); document.write( "We have
\n" ); document.write( "\"V+=+pi%2Ar%5E2h\"
\n" ); document.write( "\"V+=+pi%2A3%5E2%2A8\"
\n" ); document.write( "\"V+=+72pi\"
\n" ); document.write( "--
\n" ); document.write( "Now the volume of the cone
\n" ); document.write( "We have
\n" ); document.write( "\"V+=+%281%2F3%29Bh\"
\n" ); document.write( "\"V+=+%281%2F3%29pi%2Ar%5E2%2Ah\"
\n" ); document.write( "\"V+=+%281%2F3%29%2Api%2A3%5E2%2A4\"
\n" ); document.write( "\"V+=+12pi\"
\n" ); document.write( "--
\n" ); document.write( "adding these we get
\n" ); document.write( "\"V+=+84pi\"
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