Final answer:
The correct next step in bisecting a segment with a compass is to swing arcs from both endpoints to intersect the first arcs creates, forming a line segment that bisects the original at the midpoint.
Step-by-step explanation:
Sasha is in the process of bisecting a segment using a compass, which is a common geometric construction technique. After swinging arcs from both endpoints of the segment with the compass set to a width larger than half of the segment, her next step should be Option 1: Swing arcs on both sides to intersect the first two arcs created. These intersection points will then form a line segment perpendicular to the original segment, crossing it at the midpoint and thus bisecting the original segment accordingly.