In solid geometry, skew lines are two lines that do not intersect and are not parallel. Equivalently, they are lines that are not coplanar. A simple example of a pair of skew lines is the pair of lines through opposite edges of a regular tetrahedron. Lines that are coplanar either intersect or are parallel, so skew lines exist only in three or more dimensions.
Read more about Skew Lines: Explanation, Configurations of Multiple Skew Lines, Skew Lines and Ruled Surfaces, Distance Between Two Skew Lines, Skew Flats in Higher Dimensions
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