r1683

Let H, G be the orthocenter and the centroid of ABC. The altitudes cut the cevian circle of G, H at A, B, C and the circles centered at G going through A, B, C cut it again at A, B, C. Let Ha, Hb, Hc be the altitude feet. The lines HaA, HbB, HcC concur at the point X(403).


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