MathDB
exists a triangle of area greater than 3, (5 points 10 triangles, area >2)

Source: 2002 Romania JBMO TST 4.4

May 31, 2020
geometryareaGeometric Inequalitiescombinatorial geometrycombinatorics

Problem Statement

Five points are given in the plane that each of 1010 triangles they define has area greater than 22. Prove that there exists a triangle of area greater than 33.