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Regional Olympiad - FBH 2016 Grade 11 Problem 4

Source: Regional Olympiad - Federation of Bosnia and Herzegovina 2016

September 22, 2018
geometryincenteranalytic geometry

Problem Statement

It is given circle with center in center of coordinate center with radius of 20162016. On circle and inside it are 540540 points with integer coordinates such that no three of them are collinear. Prove that there exist two triangles with vertices in given points such that they have same area