pls answer this fast pls 7th maths
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Answer:
in 1 fig
x+y+z=180°[angle sum property ]
30°+110°+z=180°
140°+z=180°
z=180°-140°
z=40°
in 2 fig
Step-by-step explanation:
let the third angle connected to the exterior angle be y, then :
80+y=180° (linear pair)
y=180°-80°
y=100°
then,
30+100+x=180° (angle sum property)
130+x=180°
x=180-130
x=50°
hope it will help u....please mark as brainliest