document.write( "Question 574788: what shape can i make with 16 yards of fencing?? \n" ); document.write( "
Algebra.Com's Answer #369316 by KMST(5328)\"\" \"About 
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Theoretically, you could make any shape you want.
\n" ); document.write( "To get the absolute maximum fenced area, you would have to make a circle.
\n" ); document.write( "However, the most traditional shape made with fence is a rectangle.
\n" ); document.write( "The largest rectangular area that you could fence with 16 yards of fencing would be a 4 yard by 4 yard rectangle, with an area of 16 square yards. That is what most people would call a square, but a square is a special kind of rectangle.
\n" ); document.write( "Here are a few possible rectangles:
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\n" ); document.write( "INVOLVING ALGEBRA
\n" ); document.write( "In a rectangle, if the perimeter is 16 yards, and the side lengths (in yards) are x and y,
\n" ); document.write( "2(x+y)=16 --> x+y=8 --> y=8-x
\n" ); document.write( "The area (in square yards) would be
\n" ); document.write( "\"Area=x%2Ay=x%288-x%29=-x%5E2%2B8x\"
\n" ); document.write( "Rearranging we get
\n" ); document.write( "\"Area=-x%5E2%2B8x-16%2B16=-%28x%5E2%2B8x-16%29%2B16=16-%28x-4%29%5E2\"
\n" ); document.write( "Since \"%28x-4%29%5E2%3E=0\", the maximum area will be 16 and will happen when
\n" ); document.write( "\"%28x-4%29%5E2=0\" <--> \"x-4=0\" <--> \"x=4\"
\n" ); document.write( "OTHER SHAPES
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