Which of the following describes parallel lines?

Prepare for the Geometry CBE Exam with targeted resources. Access interactive quizzes and detailed explanations to master geometric concepts effectively and excel in your test!

Multiple Choice

Which of the following describes parallel lines?

Parallel lines are lines that lie in the same plane and never intersect. In a plane, if two lines have the same direction, they stay at a constant distance apart and do not cross, no matter how far you extend them. This matches the idea of lines in the same plane that never intersect. The other descriptions describe different relationships: lines that intersect to form right angles are perpendicular, not parallel; lines in two different planes aren’t in the same plane and aren’t parallel in the usual sense; and lines that are always perpendicular describe a different, non-parallel relationship.

Parallel lines are lines that lie in the same plane and never intersect. In a plane, if two lines have the same direction, they stay at a constant distance apart and do not cross, no matter how far you extend them. This matches the idea of lines in the same plane that never intersect. The other descriptions describe different relationships: lines that intersect to form right angles are perpendicular, not parallel; lines in two different planes aren’t in the same plane and aren’t parallel in the usual sense; and lines that are always perpendicular describe a different, non-parallel relationship.

More practice questions