MathDB
1415 vertices

Source: 5th JBMO JBkMO 2001, problem 4

June 11, 2004
geometryperimetertrigonometrycombinatorics solvedcombinatorics

Problem Statement

Let NN be a convex polygon with 1415 vertices and perimeter 2001. Prove that we can find 3 vertices of NN which form a triangle of area smaller than 1.