(In reply to
May I have a hint, please? by Jer)
When I made my first reply I missed:
"It's easy to prove angles ANB and BNA are equal..."
Unless you are using directed angles, ANB and BNA are always equal.
I'm still having a problem showing that the ray MC passes through the circumcenter of triangle ABC.
If I could do that, then proving that ANBH is a parallelogram is easy.
If I could prove ANBH is a parallelogram, then proving that the
ray MC passes through the circumcenter of triangle ABC is easy.

Posted by Bractals
on 20170918 22:38:15 