PERSPECTIVE

Let ABC be a triangle, A'B'C' the antipedal triangle of P = O and Oa, Ob, Oc the circumcenters of OB'C', OC'A', OA'B'. resp.

Denote:

Ab = ObOa /\ OcA

Ac = OcOa /\ ObA

Bc = OcOb /\ OaB

Ba = OaOb /\ OcB

Ca = OaOc /\ ObC

Cb = ObOc /\ OaC

The triangles OaObOc, Triangle A*B*C* bounded by (AbAc, BcBa, CaCb) are perspective (??).

Locus of P ??

Antreas P. Hatzipolakis, Anopolis #156