Question

By which angle measures can the regular octagon be rotated so it maps onto itself? select each correct answer. 45° 60° 90° 135° 180° 240°

Answer 1

45 degrees, 90 degrees, and 180 degrees. You honestly just gotta rotate them in your mind.

Answer 2

45,90,135,180 you divide 360 by 8 so every 45 degrees it maps over it