2013 ToT Fall Junior A p5 101-gon inscribed in circle, perpendicular each vertex
Source:
March 22, 2020
perpendicularpoygoncombinatorial geometrygeometry
Problem Statement
A -gon is inscribed in a circle. From each vertex of this polygon a perpendicular is dropped to the opposite side or its extension. Prove that at least one perpendicular drops to the side.