Add Tangent To Arc

Adds a Line Tangent to the Picked Point Along the Selected Arc

IMAddTangentToArc

Command: IMAddTangentToArc
Select arc to create tangent or <exit>:	Select the arc object you want to create the line tangent from.
Pick point:	Using the graphical readout, select a point along the arc as the starting point for the tangent line.
Enter tangent length <1.0000>:	Enter the length of the line. The last length entered is default.