Regular octagon abcdefgh rotates 360 degrees clockwise about its center. after how many 45 degree increments will a' coincide with f?

8

4

5

3

Option D. 3

Step-by-step explanation:

A regular ABCDEFGH rotates 360° clockwise about its center.

It means if A coincides H, if A moves 45° clockwise.

Now we can say that A will coincide the point F if A rotates 3 times by 45° clockwise.

In other words, if A rotates (3×45° = 135°) clockwise, point A will coincide point F.

Therefore, Option D. 3 will be the answer.

10000

step-by-step explanation: divide by 2,

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation: