1. lines, rays, or planes that divide angles or line segments into two equal parts
Usage: geometry; mathematics

Examples

• The angle bisectors of a triangle meet at a single point called the incenter.
• She drew perpendicular bisectors to find the midpoints of each side.
• The bisectors divided the obtuse angle into two 45-degree angles.
• Students learned to construct angle bisectors using a compass and straightedge.
• The perpendicular bisectors of the triangle’s sides intersect at the circumcenter.
• Both angle bisectors and perpendicular bisectors are important concepts in geometry.