#### Answer

80 and 150 degrees

#### Work Step by Step

We know that the sum of the interior angles is given by:
Sum=180∗(n−2)
Where n is the number of sides.
Thus, for the given problem, we have:
Sum=180∗(4−2) =360
Since the sum of the interior angles must be 360, we find that the remaining angles must add to:
360-80-50=230.
Thus, 80 and 150 degrees is the only possible answer among the options given.