Question

friends help me again​

Answer 1

Answer:

x = 70 + 80 = 150 degree ( exterior angle property of the triangle).

y = 180 - 150 = 30 degree ( linear pair ).

Answer 2

70+80+Y=180(sum of angle of triangle)

   150+y=180

   or,y =30

Now,

   Y+x=180(being linear pair)

  or,30+x=180

   or,x=180-30

   or,x=150