Question

What is the measure of each interior angle in a regular 20-gon? A. 20° B. 162° C. 180° D. 3240°

Answer 1

The correct answer is A(20) interior angles are angles that under 90 degree

Answer 2

We know, Measure of each exterior angle in a regular 20-gon = 18

As interior and exterior angle always supplementary their sum would be equal to 180, then, interior angle = 180 - 18 = 162

In short, Your Answer would be Option B

Hope this helps!