document.write( "Question 288371: A 3-ft.-wide sidewalk surrounds the outside of a rectangular plot that measures 20 ft. by 30 ft. Find the area of the sidewalk. \n" ); document.write( "
Algebra.Com's Answer #209061 by checkley77(12844)\"\" \"About 
You can put this solution on YOUR website!
(20+6)(30+6)-20*30
\n" ); document.write( "26*36-600
\n" ); document.write( "936-600=336 ft^2 is the area of the sidewalk.
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