SOLUTION: The measure of an exterior angle of a regular n-gon is 20˚ how would I find the value of n?

Algebra ->  Polygons -> SOLUTION: The measure of an exterior angle of a regular n-gon is 20˚ how would I find the value of n?      Log On


   

Question 677296: The measure of an exterior angle of a regular n-gon is 20˚ how would I find the value of n?
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
E = 360/n

20 = 360/n

20n = 360

n = 360/20

n = 18

So n = 18 which means that there are 18 sides.