document.write( "Question 174099: Hello,
\n" ); document.write( "Could you give me the surface area of a cylinder when the radius is 6cm and the Length is 21cm.
\n" ); document.write( "Could you show me the full step by step guide to work this out.
\n" ); document.write( "Many thanks
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Algebra.Com's Answer #129006 by ankor@dixie-net.com(22740)\"\" \"About 
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Could you give me the surface area of a cylinder when the radius is 6cm and the Length is 21cm.
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\n" ); document.write( "The surface area of cylinder consists of the parts
\n" ); document.write( "Part 1: the height times the circumference (in this case it's the length)
\n" ); document.write( "Part 2: the area of the two ends
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\n" ); document.write( "SA = (2*pi*r*h) + (2*pi*r^2)
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\n" ); document.write( "In your problem; r=6, h=21
\n" ); document.write( "SA = (2*pi*6*21) + (2*pi*6^2)
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\n" ); document.write( "SA = 791.68 + 266.19
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\n" ); document.write( "SA = 1017.87 sq/cm
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