SOLUTION: Which quadratic equation below could be used to represent the following situation? Your town wants to put a square fountain in the park. The fountain will have a sidewalk around

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Question 1083630: Which quadratic equation below could be used to represent the following situation?
Your town wants to put a square fountain in the park. The fountain will have a sidewalk around it that is 4 ft wide. The total space that the fountain and sidewalk can use is 800 ft^2^2. What are the largest dimensions that can be used for the fountain?
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
Your equation is

%28a%2B2%2A4%29%5E2 = 800,

where "a" is the side length of the fountain.


a = sqrt%28800%29-8 = 20.3 ft (approximately).