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многогранник

QuestionAnswer
У правильного n -кутника, якщо n≥6 ,кути не менш 120°
У кожній вершині многогранника повинно бути не менше трьох кутів
Навіть при трьох кутах сума всіх кутів вже досягає 360
Сума всіх плоских кутів при кожній вершині опуклого многогранника менше 360
Created by: Tanya356
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