Question

What degree of rotation for the regular concave polygon will carry the image onto itself?
A. 60
B. 72
C. 108
D. 120

Answer 1

For any regular n-gon, the answer is 360/n

in this case n = 5, so I'm sure you know what to do

Answer 2

I dont

Answer 3

n = 5, so

360/n = 360/5 = 72

Answer 4

so the answer is 72