Ответ:
1 = х
2 = 3х
х + 3х = 180
4х = 180
х = 45
2 = 135
3 = 2
3 = 135 градусов
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Ответ:
1 = х
2 = 3х
х + 3х = 180
4х = 180
х = 45
2 = 135
3 = 2
3 = 135 градусов