To Insert a Dimension for an Arc
1. Click
Annotate >
Insert >
Dimension. The
Select Reference dialog box opens.
2. Select
![](../detail/images/skt_tb_select.png)
on entity, or
![](../detail/images/skamp_tang.png)
tangent point reference option on the
Select Reference dialog box.
3. Select an arc. The ghost image of the dimension appears with the radius format.
4. Right-click and select Diameter, Angular, or Arc Length as the type of the dimension for the arc.