Question

In the given fig the measure of angle ABC is ​

Answer 1

Answer:

120+x=180

x=60

now

another is 20 because of vertically angle

now,

60+20+x=180 (sum of triangle)

x=100

Answer 2

Answer:

100

Step-by-step explanation:

angle 1 = 20° (vertically opposite angle)

angle 2 = 60°( linear pair)

20+60+x = 180(angle sum property)

x = 100°

therefore angle ABC = 100°