Dotted lines are lines made up of small dots or dashes instead of being solid. They are often used in diagrams, maps, and illustrations to indicate boundaries, paths, or connections that are not physically present. For example, in a map, a dotted line might represent a hiking trail that is not clearly marked. In graphic design, dotted lines can also signify a cut line, showing where to cut a printed material. This is common in brochures or flyers where the dotted line indicates the area to be removed. Dotted lines help convey information clearly without overwhelming the viewer.