DRAW Reference Manual
Point and Line Construction : Fillet Arcs
The FILLETRADIUS command can be used to draw a fillet arc between any two linear elements. (A linear element includes a STRA element, or any other element on the drawing that is composed of straight lines (for example, 3D design elements or the side of a RECT). Provided that the current element is an ARC, the syntax to create a fillet arc is, for example:
