Creating Angular Dimensions

Angular dimensions measure angles created by circles and arcs, angles between two lines, or angles created by three points.

To create an angular dimension

  1. From the Dimension menu, choose Angular.
  2. To specify the object you want to dimension, do one of the following:
  3. Select a circle, and specify a second point on the circle.
    Select an arc.
    Select a line, and specify the second line.
    Press ENTER, and specify the angle vertex and two points for the angle.

  4. Before you set the dimension location, you can edit its text or text angle.
  5. Enter m to edit the dimension text with the Multiline Text Editor, or enter t to edit the dimension text on the command line.
    Enter a to rotate the angle of the dimension text.

  6. Specify the dimension location.

AutoCAD displays either the minor or the major angle, depending on where you place the dimension. To specify one or the other, move the cursor inside (minor) or outside (major) the extension lines.

Command line DIMANGULAR
If you use two straight, nonparallel lines to specify an angle, the dimension line arc spans the angle between the two lines. If the dimension line arc does not meet one or both of the lines, AutoCAD draws one or two extension lines to intersect the dimension line arc. The dimension line arc is always less than 180 degrees.

The following illustration shows examples of angular dimensions. Numbers indicate the first (1), second (2), and third (3) selection points.

creating_angular_dimension

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