Question

Find the number of sides of a regular polygon whose interior angleis twice the exterior angle.

Answer 1

e+q= 180 degree
Since each interior angle is twice it’s adjacent exterior angle, therefore, substitute i=2e
e+2e = 180
3e = 180
3=180/3=60
We know that measure of exterior angle is 3=360/n where n is number of sides
n=369/e=360/60=6