Question

To copy an angle using only a compass and a straightedge, begin by marking the vertex of the new angle. Then draw a ray from the vertex, which will be one of the legs of the new angle. What is the next step in the construction?

Answer 1

measure the angle using the compass (the zero is aligned with the ray) and mark the point.

Answer 2

on your original angle, make a "circle" with the center of the circle as the vertex of the angle

Answer 3

the circle can be any size as long as the side of the circle touches both sides of the angle