On the ribbon, click Annotate tab Dimension panel
Dimension
.
In the graphics window, select the geometry and drag to display the dimension.
To add a linear dimension for a line or edge, click to select the geometry.
To add a linear dimension between two points, two curves, or a curve and a point, click to select each point or curve.
To add a linear symmetric or linear diametric dimension, select two parallel lines or edges, right-click, and then select Dimension TypeLinear Symmetric or Linear Diametric.
To add a linear foreshortened dimension, select two lines, edges, or points. Then right-click and select Dimension TypeLinear Foreshortened.
To add a radial or diametric dimension, click to select an arc or circle.
To add an angular dimension, select two lines.
To add a foreshortened angular or arc length dimension, select two lines, right-click, and then select Dimension TypeAngular Foreshortened, or Arc Length Foreshortened.
To add a dimension that rotates perpendicular to a selected edge: 1) Select a linear edge or 2 points. 2) Right-click and select Dimension Type Rotated. 3) Select a line to establish parallel or perpendicular direction of the dimension.
To annotate an arc segment with an arc length, angular, or chord length dimension, click to select the arc. Then right-click, and then select Dimension TypeArc Length, Arc Length Foreshortened, Angular, Angular Foreshortened, or Chord Length.
To add an implied intersection dimension, select the first curve, right-click, and then select the intersection. Select the second curve that defines the implied intersection, and then select the element (or other implied intersection) to dimension.
Click to place the dimension in the appropriate location.
Create aligned dimensions based on each of the following inputs:
Create linear dimensions based on the following inputs:
Create linear dimensions based on these inputs:
Create linear dimensions based on these inputs:
Create angle dimensions based on each of the following inputs:
Create diameter dimensions using these context menu selections:
Create radius dimensions using these context menu selections: