Question

solve the following sum given in image​

Answer 1

Answer:

y = 180 -(80+70)

y=30

x=180-y,

x=150

Answer 2

x = 70° + 80° [Exterior Angle Property]

x = 150°

Now,

x + y = 180° [Linear Pair]

150° + y = 180°

y = 180° - 150°

y = 30°

Hope you find it helpful.