Angle Bisectors
Angle Bisectors: Overview
This topic covers concepts, such as Bisectors of the Angles between Two Lines, To Discriminate between Acute and Obtuse Angle Bisector, Equation of Bisector between Two Lines, Bisector of the Angle between Two Lines Containing a Given Point, etc.
Important Questions on Angle Bisectors
Given vertices of a triangle, find the equation of the perpendicular dropped from to the interior bisector of the angle

Find the equation of the bisector of the obtuse angle between the lines and .


The equation of bisector of the acute angle formed between the lines and has the equation is

Equation of angle bisector between the lines and are

The equation of the bisector of the angle between the lines which contains the point is

Equation of angle bisectors between and - axes are

The equation of the line which bisects the obtuse angle between the lines and , is

The equation of the bisector of the acute angle between the lines and is

The equation of the bisectors of the angles between the lines are

Equation of angle bisectors between the lines and are

Let and be three points. Then, the equations of the bisector of the angle is
