DE-BUNDESWETTBEWERB 2019 Problem 7
Let be atriangle with and incircle . Let be the intersections of the median, angle bisector and altitude from point respectively. The tangent to passing through , that is different from , touch in . Prove that the angles and are equal.
Dataset text AI-MO AoPS. Quoted with source.
Official text: Bundeswettbewerb Mathematik 2019 official paper, page 1.
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