Definition of Terms, ContinuedPoints and linesLINE: A straight line is the shortest distance between two points and is often(Continued)referred to simply as a line. If the length of a line is indefinite or withoutfixed endpoints, its length is any distance you select. If the line has fixedendpoints, mark them with small mechanically drawn cross hairs. Straight orcurved lines are parallel if the shortest distance between them remainsconstant throughout their length. If a line is parallel to another line, use thecommon symbol for parallelism (||). Lines that intersect at right angles (90°)to each other are referred to as perpendicular. Indicate perpendicularitywithshort lines intersecting at right angles (^ (singular) or ^s (plural)) or a smallsquare box at the apex () of the intersection.Figure 2-2 shows common line terminology.Figure 2-2. Continued on next page2-4