Optional:
Trim the use-edge to resize its geometry as required.
The arc of the use-edge is created and listed in the tree.
The mark of the use-edge is in construction mode.
Trimmed Use-edges
From the Sketch section of the action bar,
click Constraint.
Select the arc of the use-edge.
The curvilinear distance constraint is created between the end-points of the arc.
Place the dimension or click to end the command.
The curvilinear distance constraint is displayed. An arc of a circle is displayed above the value of the constraint to denote the curvilinear constraint.
Note:
The value of this curvilinear constraint can be changed to control the curvilinear distance between the ends of the use-edge.