How to Draw a Bisector of an Angle?

To draw a bisector of an angle in AutoCAD, you can follow these steps:

Auxiliary line

Draw a circle of any radius with a vertex as the center, then trim the arc outside the angle lines, and then connect the vertex and the midpoint of the arc with line. A bisector line will be finished.

Draw a circle of any radius with a vertex as the center
After Trim
Connect the vertex and the midpoint of the arc with line

Construction line command

Creates an xline that passes through the selected angle vertex and bisects the angle between the first and second line.

First, with an existing angle, click on the “Draw” tab and select “Construction Line”. Then enter the “B” parameter to bisect the object.

Next, snap to the vertex of the angle you want to divide. Then follow the prompts to select two points on either side of the angle. A bisector line will appear.

Angle bisector with DWGSee CAD

In DWGSee CAD, click on the Draw and select “Bisector”. Then follow the commands on the command line to choose two sides of the angle and the intersection point, which is also the vertex of the angle. The bisector line will be drawn.

Enter 2 to confirm number of equal parts of the angle

Note, please make sure that you select the two sides with counterclockwise,if you choose the two sides with clockwise, it may lead to the following situations.

Center Line

Enter the centerline command, select one line, then select another line, and the bisector line is drawn.

The centerline bisects the angles of the two intersecting lines. In this example, the location of the pick points defines the direction of the centerline.

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