Question

Find the value of x
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Answer 1

Answer:

in the leftside triangle,

Using sum of angles of a triangle we get,

30+50+y=180

80+y=180

y=100

Now,

x+y=180 [linear pair]

x+100=180

x=180-100

x=80 degree

Step-by-step explanation:

Answer 2

Answer:

x = 80

Step-by-step explanation:

In triangle angle 50° + angle 30° = 80°

other remaining angle is

50+30+ y = 180 ( angle sum property of triangle)

y= 180- 80

y = 100°

so, by linear pair x+y = 180

x+ 100= 180

x= 180- 100

x= 80