Answer:
45 degrees
Step-by-step explanation:
Hi there!
We're given that m and n are parallel. This makes the third line a transversal, a line that cuts through them both.
Observe the relation between the angle that measures 135 degrees, the angle that measures x degrees and the transversal. This formation makes 135 and x supplementary angles, meaning they add up to 180 degrees.
To find x, subtract 135 from 180:
180-135 = 45
I hope this helps!
