document.write( "Question 354604: If the perimeter of the rectangle is 30cm , find its area. \n" ); document.write( "

Algebra.Com's Answer #253353 by vleith(2983) $\"\"$ $\"About$

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Let the length be given by l.
\n" ); document.write( "The permieter of a rectangle is given by $\"perimeter+=+2l+%2B+2w\"$
\n" ); document.write( "So $\"%2830+-+2l%29%2F2+=+w\"$
\n" ); document.write( "The area is then $\"l%2Aw\"$
\n" ); document.write( " $\"l+%2A+%28%2830+-+2l%29%2F2+%29+\"$
\n" ); document.write( " $\"15l+-+l%5E2\"$ \n" ); document.write( "

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