The measure of
is

We can follow these steps:
1. We are given that the measure of one of the angles adjacent to
is

2. Since the angles adjacent to
are supplementary, their measures must add up to
.
3. Therefore, the measure of the other angle adjacent to
is
.
4. We are also given that the measure of the angle opposite
is
.
5. Since the angles on a straight line must add up to
, we have:
.
6. Solving for
, we get:
.
Therefore, the measure of
is
.
The probable question is attached below