



 
Carisa, This problem does not seem to make sense. Some of the apparent options are not meaningful. If her available space is "8 feet by 4 feet" it does not seem It may be shown that she cannot save fence by including extra space inside the fence as well as the 4x8 rectangle. If she could use an arbitrary 32 square foot plot it would be most efficiently fenced as a circle and this can be approached arbitrarily closely by a polygon with many sides. RD Carisa, There is an expression for the area of a regular polygon at http://mathcentral.uregina.ca/QQ/database/QQ.09.06/s/dana1/dana1.html Harley
 


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