# Pedal Points of Isogonal Conjugates are Concyclic

- Author:
- Steve Phelps

- Topic:
- Geometry

Drop perpendiculars from isogonal conjugates to the sides of the triangle. The feet of the perpendiculars on the
sides of the triangles lie on a circle.
The most famous of these circles is the Nine-point circle (Orthocenter and Circumcenter are isogonal conjugates)