document.write( "Question 722580: I don't understand the method needed to be used to find the area of a rectangle if:\r
\n" ); document.write( "\n" ); document.write( "perimeter=64 units
\n" ); document.write( "length= x units
\n" ); document.write( "width= 2x-11 units
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Algebra.Com's Answer #442796 by josgarithmetic(39630)\"\" \"About 
You can put this solution on YOUR website!
Use fundamental relationships. length*width is area for a rectangle. Perimeter of a rectangle is 2 times the sum of length and width.\r
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\n" ); document.write( "\n" ); document.write( "In symbols, or variables, if L is length and W is width, then:
\n" ); document.write( "2L+2W=perimeter, and L*W= area. \r
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\n" ); document.write( "\n" ); document.write( "You are looking for area for your described rectangle. Use perimeter to find your unknown x, and then use this in your calculation for area, L*W.
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