These angles are supplementary.

Question

1. X and 2. 128°
What is the measure of /_x?
x = [?]°

Answer 1

To find the measure of angle \( X \) that is supplementary to \( 128° \), we use the property that two angles are supplementary if their measures add up to \( 180° \).

So we can set up the equation:

\[ X + 128° = 180° \]

Next, we solve for \( X \):

\[ X = 180° - 128° \]

Calculating that gives:

\[ X = 52° \]

Thus, the measure of angle \( X \) is:

\[ x = [52°] \]