+0

# Difficult Geometry Problem

0
46
1
+1024

Let ABCD be a cyclic quadrilateral. Let P be the intersection of \(\overleftrightarrow{AD}\) and \(\overleftrightarrow{BC}\), and let Q be the intersection of \(\overleftrightarrow{AB}\) and \(\overleftrightarrow{CD}\). Prove that the angle bisectors of angle DPC and angle AQD are perpendicular.

Thanks so much!

AnonymousConfusedGuy  Apr 20, 2018
Sort:

#1
+86528
+1

See this very nice answer that was  provided by Melody a while back....

https://web2.0calc.com/questions/circles-and-angles

CPhill  Apr 20, 2018