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MathNet 2013 Question 26

Math Olympiad Vault · MathNet 2013

Question 26

In a triangle $ABC$ the midpoints of $BC$, $CA$ and $AB$ are $D$, $E$ and $F$, respectively. Prove that the circumcircles of triangles $AEF$, $BFD$ and $CDE$ intersect all in one point.