Question

Define parallel lines [no spam]

Answer 1

Answer:

In geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel. ... A line and a plane, or two planes, in three-dimensional Euclidean space that do not share a point are also said to be parallel.

Answer 2

Step-by-step explanation:

geometry, parallel lines are lines in a plane which do not meet; that is, two straight lines in a plane that do not intersect at any point are said to be parallel. ... A line and a plane, or two planes, in three-dimensional Euclidean space that do not share a point are also said to be parallel.

Parallel lines are the subject of Euclid's parallel postulate.[1] Parallelism is primarily a property of affine geometries and Euclidean geometry is a special instance of this type of geometry. In some other geometries, such as hyperbolic geometry, lines can have analogous properties that are referred to as parallelism.