Y by Adventure10, Mango247
Let
be a triangle and
be a point on the extension of side
past
such that
The circumcircle of
intersects the circle with diameter
again at
Let
meet
at
and
meet
at
Prove that the points
are collinear.
Remark: I would be grateful if someone can write a solution using Menelaus theorem.















Remark: I would be grateful if someone can write a solution using Menelaus theorem.

This post has been edited 1 time. Last edited by henderson, Jun 8, 2016, 3:23 PM