# Parallel lines

Parallel lines are lines in the same plane that never intersect. Line segments and rays that are parts of parallel lines are also parallel.

Related word parallelogram.

See also intersecting lines, perpendicular lines.

Parallel lines are lines in the same plane that never intersect. Line segments and rays that are parts of parallel lines are also parallel.

Related word parallelogram.

See also intersecting lines, perpendicular lines.