Question 1144872
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It is the standard equation of the circle of the radius 120 ft centered at the point (20,40) in a coordinate plane


    {{{(x-20)^2}}} + {{{(y-40)^2}}} = {{{120^2}}},


where x is the East coordinate in feet and y is North coordinate, in feet.


The origin of the coordinate system is the intersection mentioned in the post.
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