Question

Find the value of g in the figure given below.
Assume that the lines are parallel.

Answer 1

angle g = 20 degree

Explanation:

60 degree + angle g = 180 degree (being co exterior angles)

angle g = 180 - 60

angle g = 120 degree

Note : co interior angles are the angles formed on the exterior of the two parallel lines and which are on the same side of the transversal .

Answer 2

d=60-degree (Vertically opposite angles)

e=d=60-degree (Alternate angles)

e+g=180-degree (Being in a straight line)

60+g=180

g=180-60

g=120-degree