Practice question · True or false
Two lines in can be neither parallel nor intersecting.
Hints
- Does the plane intuition carry to three dimensions?
- Skew lines.
Show the answer
True
Why
True. Skew lines run in different directions and never meet, impossible in the plane, routine in space, as with two edges on opposite faces of a cube. It is a good check on geometric intuition, since the planar case makes 'not parallel' feel like it should force a crossing.
Practise Lines, Planes, and Geometric Transformations
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