Mathematics, 02.10.2020 15:01 hunterl0513

Биссектрисы треугольника ABC пересекаются в точке I. Найдите углы AIB, BIC и CIA, если A=80 градусов, B=70 гр.

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Биссектрисы треугольника ABC пересекаются в точке I. Найдите углы AIB, BIC и CIA, если A=80 градусов...