Which statement is the most precise and correct definition of parallel lines?
Two lines are parallel if they do not intersect.
Two lines are parallel if they are on the same plane.
Two lines are parallel if they intersect at a right angle.
Two lines are parallel if they are at a constant distance apart.
Two lines are parallel if they do not intersect.
The most precise and correct definition of parallel lines is:
Two lines are parallel if they do not intersect.