MathDB
locus of intersections of 2 lines, fixed circle and fixed line

Source: 2022 Oral Moscow Geometry Olympiad grades 8-9 p5

April 17, 2022
Locusgeometry

Problem Statement

Given a circle and a straight line ABAB passing through its center (points AA and BB are fixed, AA is outside the circle, and BB is inside). Find the locus of the intersection of lines AXAX and BYBY, where XYXY is an arbitrary diameter of the circle.
(A. Akopyan, A. Zaslavsky)