Four pairs, which intersect at the four vertices!
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A cube has 12 intersecting line segments or edges, 6 faces and 8 vertices.
two line segments that are not parallel are intersecting even if they don't touch like this /l / l they are considered intersecting because you must extend it like they are lines to say they are parallel or not
A square has two sets of parallel line segments. "Parallel" does not describe a square, however.
intersecting lines Anthony J. Suero
Line segments, perpendicular lines, and intersecting lines.