Respuesta :

anchitthawi
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°

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