document.write( "Question 242896: a 5 foot long cylindrical pipe has an inner diameter of 6 feet and an outer diameter of 8 feet. what is the total surface area(inside and out, including the ends)? \n" ); document.write( "

Algebra.Com's Answer #177877 by JimboP1977(311) $\"\"$ $\"About$

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Do you know the formula for the surface area of a cylinder? It is $\"A+=+%282%2APi%2Ar%5E2%29%2B2%2APi%2Ar%2Ah\"$ \r
\n" ); document.write( "\n" ); document.write( "Where A is the total surface area, r is the radius, and h is the height.\r
\n" ); document.write( "\n" ); document.write( "The total surface area is equal to the larger outside cylinder's side plus inside's cyclinder side plus 2 times the difference of each end. Algebraically:\r
\n" ); document.write( "\n" ); document.write( " $\"%282%2APi%2A4%2A5%29%2B%282%2APi%2A3%2A5%29%2B%282%2APi%2A4%5E2%29-%282%2APi%2A3%5E2%29\"$ \r
\n" ); document.write( "\n" ); document.write( "This all equals 263.9 feet^2 (to 4 significant figues)\r
\n" ); document.write( "\n" ); document.write( "Does that make sense? \n" ); document.write( "

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