Parallel lines

Parallel

What is parallel?

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In geometryparallel lines are lines in a plane which do not meet; that is, two lines in a plane that do not intersect or touch each other at any point are said to be parallel. By extension, a line and a plane, or two planes, in three-dimensional Euclidean space that do not share a point are said to be parallel. However, two lines in three-dimensional space which do not meet must be in a common plane to be considered parallel; otherwise they are called skew lines. Parallel planes are planes in the same three-dimensional space that never meet.

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.

What  is Interior angles?

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The interior of an angle is the area between the two rays that define it, shown in yellow above. Even if the angle is made up of line segments and so have a finite length, the interior extends beyond them forever.

What is Exterior angles?

The Exterior Angle is the angle between any side of a shape, and a line extended from the next side.

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