MathDB
Hexagon concurrency

Source: ITAMO 2019 #1

May 3, 2019
ITAMO 2019geometry

Problem Statement

Let ABCDEFABCDEF be a hexagon inscribed in a circle such that AB=BC,AB=BC, CD=DECD=DE and EF=AF.EF=AF. Prove that segments AD,AD, BEBE and CFCF are concurrent..