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If the two lines lie in the same plane, and they do not intersect, then they are parallel. If they are not in the same plane, and do not intersect, then they are called skew lines.

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Q: If two lines do not intersect must they be parallel?
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Related questions

If two coplanar lines do not intersect then they must be what?

Skew. * * * * * FALSE. In fact, if they are skew, they must intersect. They have to be parallel for them not to intersect.


How are two line that are parallel to each other different from any other two lines?

Two parallel lines never meet or intersect. Two lines that aren't parallel must have one point somewhere where they intersect.


Are two lines that are not parallel coplanar and do not intersect?

are two lines that are not parallel, coplanar, and do not intersect


What is an antonym for skew lines?

Parallel Lines - Skew lines are lines that do not intersect and do not lie in the same plane. If two lines lie in the same plane they they must either intersect or they are parallel.


When are two lines nonintersecting?

When two lines are parallel, then they do not intersect.


Two lines that do not intersect and are in different planes?

They are skew lines. Two parallel lines must be in the same plane.


What are two lines that don't intersect?

Parallel lines do not intersect.


Are lines that never intersect parallel or perpendicular?

parallel ============================================= Parallel. _____________________ _____________________ Those two lines will NEVER intersect.


Can two lines be parallel and have the same Y intersect?

Parallel lines are lines that never intersect. So the answer is no.


Are two lines that do not intersect skew?

Two lines that are not parallel and do not intersect are skew. If the non-intersecting lines are in the same plane then they are parallel.


Two lines that do not intersect?

Two parallel lines.


Why do two non-parallel lines have to intersect?

The lines have to intersect because lines go on forever and if then are not parallel then they will collide. Even if they are not parallel by one degree they will still intersect.