Isaac draws a regular octagon and rotates it about its center. which angle measures can isaac rotate the regular octagon through to map it onto itself? select each correct answer. 30° 45° 90° 120° 135° 180°

The sum of angles in a regular octagon is
180*(8 - 2) = 1080°.
Each angle of the octagon is 1080/8 = 135°.
There are 8 equal central angles to each vertex.
Each central angle is 360/8 = 45°

Therefore the octagon will map onto itself if it is rotated by its center through these angles:
45°
90°
135°
180°

Letter c so sorry if i’m wrong ):

Heya dear

df =

both have same length