Geometry · Points, Lines & Angles
Segment Bisector
HSG-CO.A.1
Definition
A line, ray, or segment that divides another segment into two equal parts at its midpoint.
Examples
- A segment bisector passes through midpoint M, cutting the segment into two equal halves.
- Any line through a segment's midpoint is a segment bisector of that segment.
Key rule
A segment bisector always passes through the midpoint.
Memory hook
Cuts a segment exactly in half.