tangent circles wanted, cyclic pentagon related (Kharkiv City X 2013 - Ukr)
Source:
March 13, 2020
tangent circlesgeometrycirclesCyclicpentagonKharkiv
Problem Statement
The pentagon is inscribed in the circle . Let be the intersection point of the diagonals and . A line is drawn through the point parallel to , which intersects and at points and , respectively. Prove that the circumscribed circle of the triangle is tangent to .