MathDB
3 points construction for max pentagon area

Source: VI Soros Olympiad 1990-00 R1 10.6 https://artofproblemsolving.com/community/c2416727_soros_olympiad_in_mathematics

May 28, 2024
geometrygeometric inequalityareaspentagonconstruction

Problem Statement

Points AA and BB are given on a circle. With the help of a compass and a ruler, construct on this circle the points C,C, DD, EE that lie on one side of the straight line ABAB and for which the pentagon with vertices AA, BB, CC, DD, EE has the largest possible area