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Ответ:

Пошаговое объяснение:

1) < 2 = (360-116) : 2 = 122°

2) < 1 = (360-238) : 2 = 61°

3)  < 1 = (180-38) : 2 = 71°

< 2 = 71 + 38 = 109°

< 3 = < 1 = 71°

< 4 = < 2 = 109°

4) < 1 = 180:3 = 60°

< 2 = 2*60 = 120°