(3)[APH]: Let ABC be a triangle and P a point. Denote: Ab, Ac = the orthogonal projections of A on BP,CP, resp. Ma = the midpoint of AbAc. Similarly Mb, Mc. A2,
(3)... Let PaPbPc the antipedal triangle of P. Which is the locus of P such that the parallels to Ra,Rb,Rc through Pa, Pb, Pc, resp. are concurrent? The whole
(7)[APH]: Let ABC be a triangle and A'B'C' the cevian triangle of I. Denote: Bc, Cb = the reflections of B, C in CC', BB', resp. Oa = the circumcenter of ABcCb.
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