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intersecting lines
Two lines cross or intersect at a point.
Parallel lines.
a segment
Perpendicular
parallel lines
Two lines cross or intersect at a point.
The location two lines cross or intersect is called a vertex.
Parallel lines.
a segment
Lines that cross each other at 90 degrees are perpendicular lines.
"perpendicular"
the point of intersecting
Perpendicular
parallel lines
They are perpendicular lines
Mutually perpendicular.
They are called parallel lines, provided they remain the same distance from each other.