Table of Contents
Construction of an Angle Bisector
The angle bisector is a line that divides an angle into two equal parts. It is perpendicular to the two sides of the angle.
Angle Bisector Definition
An angle bisector is a line segment that cuts an angle in half. It is perpendicular to the two sides of the angle that it bisects.
Exterior Angle Bisector Definition
The exterior angle bisector of a triangle is a line segment that cuts the exterior angle of a triangle in half. The exterior angle bisector is perpendicular to the side that contains the exterior angle.
Angle Bisector Theorem
The angle bisector theorem states that the angle bisector of an angle is the perpendicular bisector of the angle’s side opposite the angle.