Question

1.How many sides does a regular polygon have if each of its interior angle is 160degree? ​

Answer 1

Answer:

18 sides

Step-by-step explanation:

If the interior angle of a regular polygon is 160 degrees, then the exterior angle is 20 degrees. The sum of all exterior angles is 360 degrees so there must be 360/20 sides = 18 sides.

Answer 2

(n-2) 180= 160

180n-160n=360

20n= 360

n=18(ans)