Question

Which of the following could not be the measure of an exterior angle of a polygon?

Answer 1

I believe that the best answer among the choices provided by the question is B.) 2 degrees
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Answer 2

Answer:

D.) 191 degrees

Step-by-step explanation:

An exterior angle cannot be 191 degrees, because the sum of one exterior angle and one interior angle of a polygon must be 180°, and this options refers to a exterior angles that is above that restriction. So, 191° is the impossible option.

If you see the image attached, you will see that one exterior angles and one interior angle are on a straight angle which is always 180°. That's why a exterior angle cannot be more than 180°.