Answer:
The size of angle x is 115 degrees.
Explanation:
So I believe that for this it wants an entire circle, meaning that the total would be 360, and the angle x is obviously obtuse (More than 90), so we would need to add the 81 degrees and 164 degrees to get 245 degrees.
Now we need to find x, so lets take our total, and take that away from 360. 360-245=115
x=115
Hope this has helped have a good day.