2007-06-12 19:03:59 · 2 answers · asked by super sonic* 3 in Science & Mathematics ➔ Mathematics
Parallel lines in Euclidian geometry have NO point in common
Coinciding lines have ALL their points in common
2007-06-13 07:32:38 · answer #1 · answered by santmann2002 7 · 0⤊ 0⤋
Parallel is a term in geometry and in everyday life that refers to a property in Euclidean space of two or more lines or planes, or a combination of these. The existence and properties of parallel lines are the basis of Euclid's parallel postulate.
In other words, parallel lines must be located in the same plane, and parallel planes must be located in the same three-dimensional space. A parallel combination of a line and a plane may be located in the same three-dimensional space. Lines parallel to each other have the same gradient. Compare to perpendicular.
coinciding lines are lines that
1. To occupy the same relative position or the same area in space.
2. To happen at the same time or during the same period.
3. To correspond exactly; be identical.
2007-06-13 02:06:48 · answer #2 · answered by Tubby 5 · 0⤊ 0⤋