Question

How to do this question plz answer me ​

Answer 1

number of sides = 360/exterior angle
number of sides = 360/20
number of sides = 18
hope this helps x

Answer 2

Hey buddy, here is your answer. Hope it helps you.

Explanation:

No of sides= 360/exterior angle

=360/20

=18 sides

the number of the sides of the polygon is 18 sides.