Answer:
45°
2 - Clockwise
Step-by-step explanation:
ABCDEFGH is a regular octagon.
The minimum degree of rotation by which this octagon can map onto itself.
For rotation we have to find the central angle of each side.
Complete angle = 360°
A regular octagon has 8 equal sides. All sides make same angle at center.
8Ф = 360°
Ф = 45°
If we rotate regular octagon by 45° then it map onto itself.
Hence, 45° correct answer.
After 2 times clockwise rotation by 45° each time. We will get the image of A coincide with C as shown in attach figure.
C is second vertex of A.