BALKAN 2024 Problem 1
- Paper
Let be an acute-angled triangle with and let be the foot of the -angle bisector on . The reflections of lines and in line meet and at points and respectively. A line through meets and at and respectively such that lies strictly between and while lies strictly between and . Prove that the circumcircles of and are tangent to each other.
Dataset text NuminaMath olympiads. Quoted with source.
Solutions
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