В треугольнике ABC LA:B:= 2:1:1. Найди эти углы.
LA = 30°, _B = 30°, _C= 120°
LA = 80°, LB = 50°, _C= 50°
LA = 90°, ZB = 45°, 2C= 45°
LA = 45°, ZB= 90°, C = 45°
ПОМОГИТЕ СРОЧНО!!!! ​
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