Connectors may be different than lines in certain ways because they are linked to the shapes they connect — move the linked shape, and the connector repositions itself with the shape. Yet in other ways, connectors are just like conventional lines in PowerPoint, especially when you explore their formatting options. You can thus add arrowheads to your connectors (or remove them), make your connector a dashed line rather than an undashed one, and also change the thickness of the connector.
Learn how to format connectors in PowerPoint 2010 for Windows.

