Question

Find the value of x in the given figure using properties of parallel lines.

Answer 1

Answer:

x =42

Step-by-step explanation:

x and 138 are same side interior angles.  Same side interior angles are supplementary when the lines are parallel

x+138 = 180

x = 180-138

x =42

Answer 2

Answer:

42°

Step-by-step explanation:

138° + x = 180°

180° - 138° = 42°