MathDB
circle of radius 1, chords with sum 1, inscribe reg. hexagon, no intersections

Source: Sharygin 2011 Final 8.4

December 13, 2018
circlegeometryregular polygonhexagoninscribedChordscombinatorics

Problem Statement

Given the circle of radius 11 and several its chords with the sum of lengths 11. Prove that one can be inscribe a regular hexagon into that circle so that its sides don’t intersect those chords.