Question

Find m<1
A. 57
B. 123
C. 132
D. 93

Answer 1

Explanation:

`\angle 1` is the exterior angle of the given
`\triangle.`

Therefore, by remote exterior angle theorem.

`\therefore \: m \angle \: 1 = 60 \degree + 63\degree \\ \\ \huge \red{ \boxed{\therefore \: m \angle \: 1 = 123 \degree }}`