RMO 2015 B1
- CRMO Paper 2
Let ABC be a triangle. Let B' and C' denote the reflection of B and C in the internal angle bisector of angle A. Show that the triangles ABC and AB'C' have the same incenter.
Dataset text AI-MO AoPS. Quoted with source.
Official text: Indian Regional Mathematical Olympiad 2015 official paper, page 1.
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