Geometry Worksheets, Two Lines in a Plane

A plane is a flat surface that extends to infinity in its length and width. The plane is two-dimensional.

Two Lines On The Same Plane With Respect To Each Other

Parallel: If two lines in the same plane do not intersect, they are parallel to each other. Parallel lines run in the same direction and are therefore unlikely to intersect. Parallelism is indicated by the symbol //.

Intersecting: Two non-parallel lines in the same plane intersect at a point. If two lines intersect in any way that is not perpendicular, those lines are called intersecting lines.

Perpendicular: If two lines intersect perpendicularly, these lines are called perpendicular lines. Perpendicular lines intersect each other perpendicularly. The angle between them is a right angle, that is, 90 degrees.


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