document.write( "Question 1033147: A steel roller is 4ft. long and 30 in. in diameter. what area will it cover in rolling through 250 revolutions?
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Algebra.Com's Answer #647739 by Fombitz(32388)\"\" \"About 
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One revolution would move through the length of the circumference of the roll.
\n" ); document.write( "So that area would be,
\n" ); document.write( "\"A=2pi%2AR%2AL\"
\n" ); document.write( "\"A=2pi%2A%2830%2F2%29%2A%2848%29\"
\n" ); document.write( "\"A=1440pi\"}
\n" ); document.write( "So then 250 revolutions would be,
\n" ); document.write( "\"A%5Bf%5D=250%281440pi%29\"
\n" ); document.write( "\"A%5Bf%5D=36000pi\"\"in%5E2\"
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