Which term describes a line or ray that divides a segment into two equal parts?

• A. Segment Bisector
• B. Angle Bisector
• C. Perpendicular Bisector
• D. Midpoint

Answer: (A)

A line or ray that divides a segment into two equal parts is called a segment bisector. This means the line or ray passes through the segment’s midpoint, splitting the segment into two congruent pieces. The requirement is about evenly dividing the segment, not about creating equal angles or being perpendicular, so the broader term is appropriate.

An angle bisector, by contrast, splits an angle into two equal angles, not a segment. A perpendicular bisector would also split the segment into two equal parts, but it adds the condition of being perpendicular to the segment, which isn’t required here. A midpoint is just the point where the division occurs, not a line or ray that does the dividing.