1x +2x+3x+4x = 180
10x = 180
x = 180/10
x = 18
Меньший угол = 1 * 18 = 18 градусов
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1x +2x+3x+4x = 180
10x = 180
x = 180/10
x = 18
Меньший угол = 1 * 18 = 18 градусов