Question

Described below are the first three steps for constructing the perpendicular bisector of a line segment.

Answer 1

I think your answer is D  slightly longer than one-half the length of the line segment

Answer 2

The answer is D) Slightly longer than one-half the length of the line segment.

That is because you need the arc long enough so that the other arc have an intersecting point.

Hope this helps :)