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Mathematics, 25.02.2021 14:00 24mm05

2. В треугольнике ABC угол B равен 81°. Внешний угол в вершине С равен 123°. Найдите ,чему равны углы помогите пожалуйста пж пж пж ​

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2. В треугольнике ABC угол B равен 81°. Внешний угол в вершине С равен 123°. Найдите ,чему равны уг...
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