From the Toolbar: Find the Angular Dimension Tool icon on the Entity Toolbar (color coded blue) and Click on the tool. The tool is now active and ready for use.

 
From the Shortcut Key: The default shortcut key for the point tool is the letter "Shift + D, 6". Simply press the key and the tool will be activated.

 
From the Command Line: Type "dimension_angular" into the Command Line, at the top of the notification window, and press the Enter/Return key.

1. Click on the drawing to specify the center point of the dimension.

2.  Move the mouse and click to set the start point. This is the point from which the angle will be measured with reference to center point.

3.  Move the mouse and click to set the end point. This is the point to which the angle will be measured with reference to center point.

4.  Move the mouse and click on one side of offset point. The angle between start point and end point will be measured on this side and to this distance of the center point.

To add an angular dimension using the keyboard, open the Tool Tab in the property tree.

1.  Type the center point coordinates into the "Center Point" 3D Point Property Field found on the Tool Property Tree and press Enter to accept. This will position the center point for the dimension.

2.  Type the start point coordinates into the "Start Point" and press Enter to accept.

3.  Type the end point coordinates into the "End Point" and press Enter to accept.

4.  Type the offset side point coordinates into the "Offset Side Point" and press Enter to accept.

Reset:

Tab: Auto Snap Enabled: enables/disables the auto snap feature. Auto snap automatically enables the end, mid, nearest and quadrant Entity Snap features.

Show Unit: Displays the dimension's unit within the dimension entity's text.

Escape (Esc): Cancels current tool and activates the default tool (Selection Tool).

Space: Resets this tool.