Answer:
The value of x = 40.
Explanation:
From the figure, it is clear that given a transversal line cuts two parallel lines m and n, thus making the corresponding congruent angles 120° and 3x°.
Here, 120° is corresponding to 3x°.
As corresponding angles are congruent.
so
3x° = 120°
Divide both sides by 3
3x/3 = 120 / 3
x = 40
Therefore, the value of x = 40.