Lines

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: