Answer:
Explanation:
The transversal is cutting both a and b lines.
In order to a and b be parallel, we should have corresponding angles be of same measure. The angles marked as right angle and the angle marked as (4x - 18) are corresponding angles.
This is:
- 4x - 18 = 90
- 4x = 108
- x = 108/4
- x = 28