Constrain the radius of a single arc or circle. This prevents an arc or circle from being accidentally resized.
To constrain the radius of an arc or circle:
Click the Constrain Radius tool from the Dims/Notes tool set.
Multiple dimensional constraint tools share the same position on the tool set. Click and hold the mouse on the visible tool to open the Pop-out Tools list and select the desired tool.
Click the arc or circle to be constrained.
A green radius constraint is drawn on the object.
The Constrain Radius tool does not work on quarter arcs.
