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  1. Parallel Lines, and Pairs of Angles - Math is Fun

    Parallel lines have so much in common. It's a shame they will never meet! When parallel lines are crossed by another line (called a Transversal), special angle relationships appear. In this …

  2. Parallel lines - Definition, Properties | What are Parallel Lines?

    Parallel lines are those lines that are always the same distance apart and that never meet. The symbol used to denote parallel lines is ||. Explore more about parallel lines, equations, and …

  3. Parallel (geometry) - Wikipedia

    Two distinct lines l and m in three-dimensional space are parallel if and only if the distance from a point P on line m to the nearest point on line l is independent of the location of P on line m.

  4. What are Parallel Lines? Definition, Properties, Examples, Facts

    In geometry, parallel lines can be defined as two lines in the same plane that are at equal distance from each other and never meet. They can be both horizontal and vertical.

  5. Parallel Lines | Definition, Properties & Formula - GeeksforGeeks

    Jul 23, 2025 · Broadly lines can be divided into Parallel Lines, Intersecting Lines, and Perpendicular lines. In this article, we will learn about parallel lines, their properties, axioms, …

  6. Parallel Lines - Definition, Math Steps, Examples & Questions

    Free parallel lines math topic guide, including step-by-step examples, free practice questions, definitions, properties, and more!

  7. Parallel Lines – Definition, Properties, and Examples

    Parallel lines are lines that are lying on the same plane but will never meet. Understanding what parallel lines are can help us find missing angles, solve for unknown values, and even learn …

  8. Parallel lines - Math.net

    Below are some of the key properties of parallel lines that can be used to determine if two lines are parallel. Parallel lines are always equidistant from each other. Parallel lines never intersect …

  9. Parallel Lines (Geometry) | Brilliant Math & Science Wiki

    Parallel lines are lines in a plane which do not intersect. Like adjacent lanes on a straight highway, two parallel lines face in the same direction, continuing on and on and never meeting each other.

  10. Parallel Lines - Definition, Examples & Practice Problems

    When a line cuts across a set of parallel lines, it creates new angles. In this article, we will learn more about parallel lines, their properties, slope, etc with examples.