Let's remember one of the most important rules of a triangle!
- All angles must add up to 180 degrees!
With that in mind, let's add the angles that we know together.
[tex]33.5 + 127 = 160.5[/tex]
We know two angles, simply meaning the last angle should be able to make 180 degrees when added to 160.5.
Let's make it easier- we can subtract 160.5 from 180!
[tex]180 - 160.5 = 19.5[/tex]
Thus, the missing angle is 19.5 degrees!
Please let me know if this helped, or if you have any questions!
