SOLUTION: Faye has 20 feet of fencing to make a rectangular pen for her dog. What is the largest area that she can fence in?

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Question 1034708: Faye has 20 feet of fencing to make a rectangular pen for her dog. What is the largest area that she can fence in?
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The largest area turns out to be a square...I could show you how to prove that using either algebra or calculus, but you did not ask for such...
Thus 20 feet of fencing would make a square 5 feet on a side for an area of 25 square feet.