Ответ:
1. L1 = 75°
2. L2 = 73°
3. L1 = 40° L3 = 140°
4. L1 = 60°
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Ответ:
1. L1 = 75°
2. L2 = 73°
3. L1 = 40° L3 = 140°
4. L1 = 60°