Bundeswettbewerb Mathematik 1989 Problem 2.3
Source: Bundeswettbewerb Mathematik 1989 Round 2
October 10, 2022
geometryrectanglecyclic quadrilateralCyclic
Problem Statement
Over each side of a cyclic quadrilateral erect a rectangle whose height is equal to the length of the opposite side. Prove that the centers of these rectangles form another rectangle.