Posted by carmie on Tuesday, November 30, 2010 at 8:26pm.
George has enough fencing to enclose 2400 square feet around a circular pool. If he builds a circular fence and he wants 12 foot walkway around the pool, what is the largest pool diameter possible?

math  PsyDAG, Wednesday, December 1, 2010 at 4:28pm
Area = πr^2
2400 = 3.14r^2
r^2 = 764
r = 27 2/3
Solve for r. d = 2r therefore d =
Assuming the walkway is completely around the pool and within the fence, largest pool diameter is d24.

math  PsyDAG, Wednesday, December 1, 2010 at 4:30pm
Area = πr^2
2400 = 3.14r^2
r^2 = 764
r = 27 2/3
Solve for r. d = 2r therefore d = 55 1/3
Assuming the walkway is completely around the pool and within the fence, largest pool diameter is d24.
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