What are Parallel lines and Transversals? https://www.youtube.com/watch?v=6RMN5Pf1fHU Parallel lines: Two lines l and m are said to be parallel if (i) they lie in the same plane (ii) they do not intersect when produced indefinitely in either direction and we write l || m (which is read as 'l is parallel to m') l || m also implies that m || l. The distance between two … [Read more...] about What are Parallel lines and Transversals?
Parallel lines
Undefined Terms Point, Line and Plane
Undefined Terms Point, Line and Plane Undefined Terms and Intuitive Concepts of Geometry Undefined terms: In geometry, definitions are formed using known words or terms to describe a new word. There are three words in geometry that are not formally defined. These three undefined terms are point, line and plane.Point (an undefined term): In geometry, a point has no … [Read more...] about Undefined Terms Point, Line and Plane
Pairs of Lines
Pairs Of Lines There are four pairs of lines:Intersecting lines Parallel lines Skew lines Perpendicular linesIf we draw two lines in a plane surface, they will either intersect each other at a point or never meet each other at all. Intersecting lines In figure, lines AB and CD intersect each other at a point (O), such lines are called intersecting … [Read more...] about Pairs of Lines