document.write( "Question 54312: Shondra wants to enclose a rectangular garden with 320 yards of fencing. What dimensions for the garden will maximize its area? \n" ); document.write( "
Algebra.Com's Answer #36569 by aaaaaaaa(138)\"\" \"About 
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The fencing is the perimeter of the rectangle, i.e. 2width+2length. We want to maximise it knowing that 2w+2l = 320.\r
\n" ); document.write( "\n" ); document.write( "There's a rule we can follow: the more apart the numbers are, the smaller their product is compared to closer numbers. In algebra, this is expressed as \"%28x%2By%29%28x-y%29+=+x%2Ax+-+y%2Ay\" So, let's suppose w=l:\r
\n" ); document.write( "\n" ); document.write( "\"4x+=+320\"
\n" ); document.write( "\"x+=+80\"\r
\n" ); document.write( "\n" ); document.write( "Therefore, to maximise the area, Shondra's garden should be a square: 80x80 yards.
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