Answer:
x = 100°
Explanation:
What is an angle?
An angle is a measure of a turn, measured in degrees or °. Angles are made up of two rays, forming the sides of the angle.
To solve for the missing angle, in this case it is x, we can find the angle that is vertical to angle x (shown in the picture below).
If that angle is equal to 100°, then that means that x must also be equal to 100°.
Therefore, the measure of x is 100°.