document.write( "Question 695553: A rectangular field along a river is to be fenced with 800 feet of fencing find the dimension of the field which produces a maximum area \n" ); document.write( "
Algebra.Com's Answer #429428 by henew(13)\"\" \"About 
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Lenghth=a\r
\n" ); document.write( "\n" ); document.write( "width=b\r
\n" ); document.write( "\n" ); document.write( "perimeter = 2(a+b)= 800\r
\n" ); document.write( "\n" ); document.write( "a+b=400\r
\n" ); document.write( "\n" ); document.write( "now Area= a x b, which can be infinite combinations from (1,399), (2,398),(3,397) etc.. upto (399,1). \r
\n" ); document.write( "\n" ); document.write( "multiply certain values and see the result.\r
\n" ); document.write( "\n" ); document.write( "product of the sides increases gradually and starts decreasing after halfway.\r
\n" ); document.write( "\n" ); document.write( "So the product is maximum when a and b are both 400.\r
\n" ); document.write( "\n" ); document.write( "Or\r
\n" ); document.write( "\n" ); document.write( "When the rectangle of given perimeter is a square, it will have maximum area
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