Dimension Angle from X-Axis

Used to dimension the angle between a line, side of a shape, or segment of a line string and the view x-axis.

The (Angle) Units, which sets whether the degree measurement or the length is dimensioned, is set in the Dimension Styles dialog box (Unit Format category).

Tool Setting	Effect
Style	Displays the active dimension style. The drop-down list box allows you to select other available dimension styles.
Magnifying glass icon	Opens the Dimension Styles dialog box, which is used to control settings for dimensioning.
Association	If on, snapping a tentative point to the element being dimensioned causes an association point to be created. If off, no associations are created.

To dimension an angle from the x-axis

Select the Dimension Angle from X-Axis tool.

Enter a data point on the line or segment to define the dimension endpoint.

Enter a data point to specify the location and direction of the dimension.

(Optional) To edit the dimension text, move the input focus to the Key-in window and press <Enter>.
The Dimension Text dialog box opens if it is not already open, letting you edit the dimension text.
Dimension Angle from X-Axis

Key-in: DIMENSION ANGLE X