document.write( "Question 203668: What is the area in feet of circular tablecloth that has a diameter of 42 inches? \r
\n" ); document.write( "\n" ); document.write( "A) 1385.44236 square feet B) 21 square feet C) 3.0625 square feet D) 1.75 square feet
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Algebra.Com's Answer #153666 by Earlsdon(6294) $\"\"$ $\"About$

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The area of a circle is given by:
\n" ); document.write( " $\"A+=+%28pi%29r%5E2\"$ Replace r with D/2 since the problem gives you the diameter, D.
\n" ); document.write( " $\"A+=+%28pi%29%28D%2F2%29%5E2\"$ Substitute D = 42 inches.
\n" ); document.write( " $\"A+=+%28pi%29%2842%2F2%29%5E2\"$ Evaluate.
\n" ); document.write( " $\"A+=+%28pi%29%2821%29%5E2\"$
\n" ); document.write( " $\"A+=+%28pi%29%28441%29\"$
\n" ); document.write( " $\"highlight%28A+=+1385.44236%29\"$ sq.in. Now convert this to square feet by dividing by 144 sq.in. per sq.ft.
\n" ); document.write( " $\"highlight_green%28A+=+9.6211%29\"$ sq.ft.
\n" ); document.write( "I just don't see this answer in your list of choices. Your answer A) has the right number but the wrong units, so answer A) would be correct if it were square inches. rather than square feet.\r
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