They're either parallel lines or skew lines.
Chat with our AI personalities
They are called skew lines. Explanation: In 3 space, parallel lines must never intersect AND must be in the same plane. If they fail to intersect and are in different planes we call them skew lines.
skew lines
They intersect at a point
They are skew lines. Two parallel lines must be in the same plane.
-- An infinite number of different planes can intersect the same line. -- The same line can lie in an infinite number of different planes. -- An infinite number of different lines can intersect the same plane.