Question

the ratio as between exterior angle and interior angle of a regular polygon
is 1:5 find number of side of polygon​

Answer 1

Let the angles be 1x and 5x

So,1x+5x = 180

x = 180/6

= 30

Exterior angle = 1*30 = 30°

Interior angle = 5*30 = 150°

No. of sides = 360/exterior angle

360/30 = 12

So, it's a twelve sided polygon.