document.write( "Question 721157: \r
\n" ); document.write( "\n" ); document.write( "A rectangle has perimeter equal to 28, what is the maximum possible area of this rectangle.
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Algebra.Com's Answer #442256 by checkley79(3341)\"\" \"About 
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P=2L+2W
\n" ); document.write( "28=2X+2X
\n" ); document.write( "28=4X
\n" ); document.write( "4X=28
\n" ); document.write( "X=28/4
\n" ); document.write( "X=7 FOR THE SIDES OF A SQUARE.
\n" ); document.write( "AREA=LW
\n" ); document.write( "AREA=7*7
\n" ); document.write( "AREA=49 IS THE MAXIMUM AREA.
\n" ); document.write( "PROOF:
\n" ); document.write( "P=2L+2W
\n" ); document.write( "P=2(L+W)
\n" ); document.write( "28=2(L+W)
\n" ); document.write( "(L+W)=28/2
\n" ); document.write( "L+W=14
\n" ); document.write( "LET THE SIDES BE L=6.9 & W= 7.1
\n" ); document.write( "AREA=6.9*7.1
\n" ); document.write( "AREA=48.99
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