The ratio of an external angle and an internal angle of a regular polygon is 1:5. The number of sides in the polygon is ?
A. 10
B. 12
C. 6
D. 8
Answer:B
The ratio of an external angle and an internal angle of a regular polygon is 1:5. The number of sides in the polygon is ?
A. 10 B. 12 C. 6 D. 8