KöMaL 2024 A871
Let be an obtuse triangle, and let denote its orthocenter. Let denote the circle with center and radius . Let and be defined in a similar way. For all points in the plane of triangle let circle be defined in the following way (if possible): take the polars of point with respect to circles , and , and let be the circumcircle of the triangle defined by these three lines. With a possible exception of finitely many points find the locus of points for which point lies on circle .
Official text KöMaL. Quoted with source.
Solutions
No solution is on olymmath yet. Official and human solutions come first when they arrive. AI solutions come after them, with a label.
Similar problems
These problems have the most words in common with this statement.