This command allows you to break a line, arc, or polyline at the intersection of another line, arc, or polyline. This command is often used in conjunction with the Area by Lines & Arcs command because many times, to get the correct area of a figure, you must break it from adjoining lines.
1 Select Line, Arc, or Polyline to Break
Select object: select entity to break
2 [int on] Pick Intersection to break at: pick intersection point