Hi a Problem :

I have to prove following statement :

In an acute-angeled triangle ABC the angle bisector W(alpha) , the median line of the side b (Mb) and the height of c (Hc) intersect themselve in one single point , if W(alpha) the side BC and the circle arround the base point of the height of c through the corner A intersect themsekve in one singe point .

Please help me!!!

Regards Peter