Fill in the blank
ABCDEFGH is a regular octagon. The minimum degree of rotation by which this octagon can map onto itself is _°. It will take _ increments of that degree of clockwise rotation for A′ (the image of A) to coincide with C.
First blank answers choices are 30, 45, 90, or 120
Second blank answer choices are 2, 4, 6, or 8
Thank you