A line is a mark that is left by a moving point. A line can be straight, curved zig-zag.
Types of lines:
Perpendicular line: A line that meets another line at a right angle. A right angle 90°.
Note the following examples:
Parallel lines: Two or more lines that run next to each other and a distance apart without connecting.
Note the following examples:
Curved lines: Lines that are not straight and don’t contain angles at all.
Note the following examples: