Answer:
30,5°
Step-by-step explanation:
∠ACB = 180° - 110° = 70°
We know that in triangle the sum of all angles is 180°
Making the equation
(x + 4) + 3x + 70 = 180
4x = 180 - 70 - 4
4x = 106
x = 26,5
Finding the angle
∠ABC = x + 4 = 26,5 + 4 = 30,5
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