Answer:
A) Create a circle with the origin as its center and a radius of the origin and point A, then locate a point on the circle that is 180° from point A.
Step-by-step explanation:
The first step is to place your compass at the origin (0,0)
Adjust the compass to a radius which equals the length of A from the origin
Draw the circle to locate the rotated point A' on the circle which is 180° from point A