If the exterior angle of a regular polygon is 45∘, then it has ___sides.
12
10
8
6
In a regular polygon
n=360∘e∘
=360∘45∘
=8
Hence (C)
In a regular polygon if the ratio of exterior angle to its interior angle is 2 : 7, then the polygon has ___ sides.
If a regular polygon has n sides, then the sum of its exterior angles is