Friday, July 23, 2021

1743. Another Circle Centered at X(5)-NPC center

-
Labels: , , , ,

1 comment:

  1. Dr. Abdilkadir AltıntaşJuly 31, 2021 at 1:30 AM

    https://artofproblemsolving.com/community/u426945h2628129p22735853

    ReplyDelete

Subscribe to: Post Comments (Atom)

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...