Monday, January 11, 2021

1628.

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1 comment:

  1. Dr. Abdilkadir AltıntaşJanuary 14, 2021 at 12:03 AM

    Added to CTC as Locus property 9. https://bernard-gibert.pagesperso-orange.fr/Exemples/k005.html

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1987. Circumcenter On Euler Line

 Let H=X(4)-Orthocenter of ABC. A 1 B 1 C 1 cevian triangle of H. B1 A , C1 A are reflections of B1, C1 on A. L A , line through B1 A , C1...