To bisect a line segment using a compass and a straightedge, follow these steps:
- Place the compass at one endpoint of the line segment and set the radius to be more than half the segment’s length.
- Draw an arc above and below the line.
- Without changing the compass setting, place the compass at the other endpoint and draw two more arcs that intersect the first pair of arcs.
- Mark the two intersection points of the arcs.
- Draw a straight line through these intersection points using the straightedge. This line is the perpendicular bisector of the segment.
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