Question

Can anyone answer this question​

Answer 1

b. 75°

Explanation:

By exterior angle theorem:

3x = x + 70°

3x - x = 70°

2x = 70°

x = 70°/x

x = 35°

Therefore, 3x = 3*35° = 105°

`\measuredangle ACB= 180\degree - 105\degree`

(Linear pair angles)

`\measuredangle ACB= 75\degree`