Question 399984
The pool at a park is circular. You want to find the equation of the circle that is the boundary of the pool. Find the equation if the area of the pool is 800 sq. feet and (0, 0) represents the center of the pool. 
A. x^2 + y^2 -800 = pie
B. x^2 + y^2 =800/pie
C. x^2 + y^2 = 800
D. x^2 + y^2 = pie/800
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{{{Area = pi*r^2}}}
{{{r^2 = (800/pi)}}}
--> B {{{x^2 + y^2 = 800/pi}}}
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PS  It's pi, the Greek letter, not pie, the dessert.