Question

Plz solve type 2 and type 3 or any one is enough

Answer 1

type2
i.a=120°
ii.x=130°
iii.a=60°
iv.x=60°
y=50°

type3
i.a=120°
ii.a=80°
iii.2a+3a=180
5a=180
a=36°
iv.a=120°
b=360-110-60-120=70°