Wednesday, January 19, 2022

1763. Similar Triangles

-
Labels: , , , , ,

1 comment:

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...