To find:
The measure of angle O.
Solution:
It is given that angle 2 = 137 and angle P = 22.
From the figure, it is clear that angle 2 is the exterior angle of the triangle.
It is known that the exterior angle is equal to the sum of two interior angles. So,
[tex]\begin{gathered} \angle2=\angle P+\angle O \\ 137=22+\angle O \\ \angle O=137-22 \\ \angle O=115 \end{gathered}[/tex]
Thus, the angle O = 115. The option D is correct.
