document.write( "Question 825057: [ I need to know the surface area (in square feet) of a cylinder 5 feet in diameter and 12 feet long ] \n" ); document.write( "

Algebra.Com's Answer #497001 by TimothyLamb(4379) $\"\"$ $\"About$

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\n" ); document.write( "each cap:
\n" ); document.write( "a = pi*r*r
\n" ); document.write( "---
\n" ); document.write( "side:
\n" ); document.write( "A = 2*pi*r*h
\n" ); document.write( "---
\n" ); document.write( "r = d/2
\n" ); document.write( "r = 5/2
\n" ); document.write( "r = 2.5 ft
\n" ); document.write( "---
\n" ); document.write( "h = 12 ft
\n" ); document.write( "---
\n" ); document.write( "total area:
\n" ); document.write( "2a + A
\n" ); document.write( "2*pi*r*r + 2*pi*r*h
\n" ); document.write( "2*pi*r*(r + h)
\n" ); document.write( "2*3.141592653589793*2.5*(2.5 + 12)
\n" ); document.write( "---
\n" ); document.write( "answer:
\n" ); document.write( "227.7655 sq.ft
\n" ); document.write( "---
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