A Family of Eight-Point Conics Associated with the Cyclic Quadrilateral

Kazimierz Chomicz, Miłosz Płatek, Konstanty Smolira +1

We consider the following configuration. Let $ABCD$ be a cyclic quadrilateral with circumcenter $O$, and for each vertex $X$, let $H_X$ be the orthocenter of the triangle formed by…