Answer:
-The Relationship:
Both
and the
angle are supplementary.
The measure of
:

Explanation:
-The relationship about both
and the
angle, is that they are supplementary, which they both add up to
.
-To find the measure of
, you need to subtract
from
to get the actual angle measurement of
:
Finding the measure of
:


So, now you have the measure of
.