There is an unthinkable number of latitude lines, but there are 2 MAIN latitude lines.
Tropic of Cancer and Capricorn are actually two major lines of LATITUDE.
Latitudes and longitudes
There actually is no space between 2 longitudinal lines. These lines are right up against each other otherwise there would be places in the world that are not on a line.
2 lines that do not and will not intersect are called parallel lines.
A shape with 4 straight lines in which there are 2 parallel and 2 unparallel lines is called a Trapezium.
2 lines of symmetry
Any 2 lines can intersect providing that they are not parallel lines
2 Lines in the same plane that do not meet are parallel. If 2 lines are in different planes and do not meet, then they are called skew lines.
A rectangle has 2 lines of symmetry
a couplet is a poem with 2 lines.
2 lines that are the same