document.write( "Question 281071: The length of a rectangle is 4 cm longer than the width. If the perimeter of the rectangle is 20 centimeters, what is the area of the rectangle?
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Algebra.Com's Answer #204251 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! L=W+4 \n" ); document.write( "2L+2W=20 \n" ); document.write( "2(W+4)+2W=20 \n" ); document.write( "2W+8+2W=20 \n" ); document.write( "4W=20-8 \n" ); document.write( "4W=12 \n" ); document.write( "W=12/4 \n" ); document.write( "W=3 ANS. FOR THE WIDTH. \n" ); document.write( "L=3+4=7 ANS. FOR THE LENGTH. \n" ); document.write( "PROOF: \n" ); document.write( "2*7+2*3=20 \n" ); document.write( "14+6=20 \n" ); document.write( "20=20 \n" ); document.write( " |