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Mathematics 21 Online
OpenStudy (anonymous):

if two lines are coplanar then they are (sometimes, always, never) skew. Which one?

OpenStudy (dumbcow):

never skew because skew lines can never intersect

OpenStudy (anonymous):

If three lines are coplanar and never intersect, then they are... parallel. which one?

OpenStudy (dumbcow):

?? you already answered it...parallel

OpenStudy (anonymous):

no sometimes always or never?

Directrix (directrix):

They are never skew. Skew lines do not lie in the same plane (are not coplanar.)

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