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Monday, June 23, 2014

Level 15: Construct the circumcircle of a triangle

Hint: All three sides are chord of the circumcircle, and the perpendicular bisector of chord …


Solution: … pass through center! Just construct two perpendicular bisectors of two sides, their intersection must be the center of the circumcircle. The radius? Just use any of A,B or C!


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