document.write( "Question 914903: Shannon bought a piece of plywood that was 4-1/2 feet wide and 8-1/4 feet long. she cut out a 3 foot diameter circle for a table she was making. Shannon then sold the leftover plywood to a friend for $1.75 per square foot. How much did Shannon'e friend pay for the leftover plywood?\r
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Algebra.Com's Answer #555340 by josmiceli(19441)\"\" \"About 
You can put this solution on YOUR website!
She started with \"+4.5%2A8.25+=+37.125+\", or
\n" ); document.write( "37-1/8 square feet
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\n" ); document.write( "Find the area of the circle
\n" ); document.write( "\"+A+=+pi%2Ar%5E2+\"
\n" ); document.write( "where \"+r+\" = the radius
\n" ); document.write( "radius = (1/2)*diameter
\n" ); document.write( "\"+r+=+3%2F2+\" ft
\n" ); document.write( "\"+A+=+pi%2A%283%2F2%29%5E2+\"
\n" ); document.write( "\"+A+=+%28+9%2Api+%29%2F4+\"
\n" ); document.write( "\"+A+=+28.269+%2F+4+\"
\n" ); document.write( "\"+A+=+7.06725+\"
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\n" ); document.write( "( leftover plywood ) = ( area she started with ) - ( area of circle )
\n" ); document.write( "leftover plywood = \"+37.125+-+7.06725+\"
\n" ); document.write( "leftover plywood = \"+30.05775+\" square feet
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\n" ); document.write( "her friend paid:
\n" ); document.write( "( cost per square foot ) x ( square feet left over )
\n" ); document.write( "\"+1.75%2A30.05775+=+52.60106+\"
\n" ); document.write( "You can't have fractions of a penny, so her
\n" ); document.write( "friend paid $52.60
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\n" ); document.write( "Hope this helps\r
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