The Internal Diametrical mode measures and dimensions the diameter of a circle or arc, and places the dimension inside the object.
To dimension the diameter of a circle or arc and place the dimension inside the object:
1. Click the Radial Dimension tool from the appropriate tool set/palette, and select Internal Diametrical mode.
● All workspaces: Dims/Notes tool set
● Spotlight workspace: Basic tool palette
2. Click on or within the arc or circle to dimension.
3. Move the cursor to preview the dimension line location.
4. Click to place the dimension.
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