In the diagram below ab is parallel to cd what is the value of x ?
A; 80
B;100
C;120
D:60

Answer:
C
Step-by-step explanation:
Since the lines are parallel then
x and 120 are alternate angles and congruent, hence
x = 120 → C
Answer:
Option C is correct.
Step-by-step explanation:
We are given that line [tex]\overline{AB}[/tex] and line [tex]\overline{CD}[/tex] are parallel to each other.
We have to find value of x.
Measure of given angle = 120°
Clearly from pic,
Given angle and x are interior angles and on the alternate sides.
So using a result of parallel line which says that Alternate interior angles are equal.
So, x = 120°
Therefore, Option C is correct.