#Cyclic Quadrilateral Proof Help
5 messages · Page 1 of 1 (latest)
Something is wrong with the statement. You can move E along BN and P may well be not on the circumcircle of AEN.
Sorry, I forgot to mention that CE is perpendicular to AB
Then it is obvious. P is on CE. And if CE intersects AB at D then ∠APD =∠ANB (as P is circumcenter)