MathDB
Regular hexagon, determine XAY

Source: Lusophon Mathematical Olympiad 2023 Problem 5

May 27, 2023
geometryperimeter

Problem Statement

Let ABCDEFABCDEF be a regular hexagon with side 1. Point X,YX, Y are on sides CDCD and DEDE respectively, such that the perimeter of DXYDXY is 22. Determine XAY\angle XAY.