Question

Help me solve Q2 because I didn't understand it.

Answer 1

Angle m and angle n lies on straight line. So, their sum will be 180°.
Angle m + angle n= 180°
Angle m + 165=180
Angle m=180-165=15°

Answer 2

Since Linear pair of angle is always 180° that means m+n=180°
(A) since n=165° is given that makes m+165°=180°
m=180°-165°
m=15°.
(B)n is five times m
that means n=5m
so that makes our equation m+n=180° into 5m+m=180°
6m=180°
m=30°
but n=5m that gives us
n= 5*30
n=150°.