Question

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

Answer 1

Step-by-step explanation:

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

Therefore, by remote exterior angle theorem.

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