These angles are supplementary.

Question

1. X and 2. 100°
What is the measure of /_x?
x = [?]°

Answer 1

If two angles are supplementary, their measures add up to 180 degrees.

Given that angle X and angle 100° are supplementary, we can set up the following equation:

\[ X + 100° = 180° \]

To find the measure of angle X, subtract 100° from both sides:

\[ X = 180° - 100° = 80° \]

Therefore, the measure of angle X is:

\[ X = 80° \]

So, \( x = [80]° \).