﻿ Definition and examples of bisect | define bisect - geometry - Free Math Dictionary Online

# BISECT

## Definition of Bisect

Bisect means to divide into two equal sections or two equal halves.

If we bisect a 900 angle, we will have two 450 angles.

• The word 'bisect' combines the common Latin 'bi' for 'two', and 'secare', meaning 'to cut', which also is the root for secant
• Straight edge and compass are used to bisect a line segment or an angle
• Anything can be bisected: a line, an angle, a circle, a square

### Example of Bisect

Following steps are involved when we bisect an angle by using ruler and compass:
Draw an arc with B as the centre to cut the arms, BA and BC, of the angle at P and Q respectively

Using the same radius, draw an arc centered at P
Again, using the same radius, draw an arc centered at Q to cut the arc previously drawn at R
Join, B, the vertex of the angle, to the point R
BR bisects the angle ABC, and is called the bisector of the angle ABC.

A. 2 cm
B. 8 cm
C. 4 cm
D. 6 cm