Puerto Rico IBERO TST Problem 4
Source:
August 15, 2011
geometrycircumcirclepower of a pointradical axis
Problem Statement
Let be a point inside the triangle , such that the angles and are equal. Denote the intersection of the line and the segment by , and the intersection of the line with the segment by . The circumcircles of the triangles and meet at and . Show that the line bisects the angle .Please remember to hide your solution. (by using the hide tags of course.. I don't literally mean that you should hide it :ninja: )