Suppose you are given a circle and find that the points (-2,1) (3,2) and (2,4) lie on the circle. Where is the center of the circle and what is its radius? What is the equation that describes this circle?
closed as off-topic by mechanodroid, José Carlos Santos, Hans Lundmark, Claude Leibovici, Arnaud D. Nov 14 '17 at 11:02
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