OBM 2024 Problem 3
Seja um inteiro positivo. Em um polígono convexo de lados, todas as bissetrizes internas de seus ângulos internos são traçadas. Determine, em função de , o menor número possível de retas distintas determinadas por essas bissetrizes.
Official text Brazilian Mathematical Olympiad 2024 official paper, page 1. Quoted with source.
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