document.write( "Question 182582: The total surface area of a right circular cylinder is 294π square inches. If the altitude of the cylinder is twice the length of a radius, find the altitude of the cylinder. \n" ); document.write( "
Algebra.Com's Answer #137117 by Alan3354(69443)\"\" \"About 
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The total surface area of a right circular cylinder is 294π square inches. If the altitude of the cylinder is twice the2.28 radius, find the altitude of the cylinder.
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\n" ); document.write( "\"A+=+2%2Api%2Ar%5E2+%2B+2pi%2Ar%2Ah\"
\n" ); document.write( "\"294+=+2%2Api%2Ar%5E2+%2B+2pi%2Ar%2A2r\"
\n" ); document.write( "\"294+=+2%2Api%2Ar%5E2+%2B+2pi%2Ar%2A2r\"
\n" ); document.write( "2pir*(r + 2r) = 147
\n" ); document.write( "\"6pir%5E2+=+147\"
\n" ); document.write( "\"r%5E2+=+49%2F3pi\"
\n" ); document.write( "r = ~ 2.28 inches
\n" ); document.write( "h = ~ 4.56 inches
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