These angles are supplementary.

Question

1. X and 2. 120°
What is the measure of /_x?
/_x = [?]°

Answer 1

Supplementary angles are two angles that add up to 180 degrees. In your case, angle X and 120° are supplementary.

To find the measure of angle X, you can use the following equation:

\[ X + 120° = 180° \]

Now, subtract 120° from both sides:

\[ X = 180° - 120° \]

\[ X = 60° \]

So, the measure of angle X is \( \mathbf{60°} \).