Question

Determine the number of sides of a regular polygon whose exterior and interior angles are in the ratio 1 : 5.

Answer 1

Answer:

Step-by-step explanation:

Let ext angle=x

then int angle=5x

x+5x=180

6x=180,x=30

int angle=180-30=150

(2n-4)*90/n=150

180n-360=150n

30n=360

n=360/30=12

no of sides=12