В треугольнике авс угол с =30 а внешний угол при вершине а равен 120 найдите неизвесные углы - №19430575

В треугольнике авс угол с =30 а внешний угол при вершине а равен 120 найдите неизвесные углы треуголька
- Предмет:
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- Автор:
  sienabaxter
- 6 лет назад

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