document.write( "Question 314226: a 5 foot border is added to all four sides of a rectangular playing field of 40 feet by 30 feet.What is the area in square feet of the added border? \n" ); document.write( "
Algebra.Com's Answer #224650 by checkley77(12844)\"\" \"About 
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40*30=1,200 ft^2 is the area of the playing field.
\n" ); document.write( "(40+10)(30+10)=50*40=2,000 ft^2 is the total area of the field & the border.
\n" ); document.write( "2,000-1,200=800ft^2 is the area of the border.
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