Parallel Lines in the Same Plane

Photograph by: Cece

This is a picture of harpoons in storage. This picture was taken in Montauk, New York in 2007. The harpoons were used for whaling and the whalers used the blubber to make oil. This oil was used for lamps that were used by the hospitality industry among others. These lamps were used instead of electric lights in hotels and restaurants, as well as ordinary people's homes and business offices. The red lines drawn on the image are parallel lines, which means that they will never intersect. The blue box drawn in the picture represents the plane that all three of the lines go through. These lines are coplanar because they all lie  in the same plane.