About 1,730,000 results
Open links in new tab
  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. 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.

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

    What are the properties of parallel lines? Parallel lines are always straight lines that are the same distance apart, they never intersect and they are coplanar (meaning on the same plane).

  5. Parallel & perpendicular lines | Basic geometry (video) | Khan …

    Parallel lines are lines that never intersect, and they form the same angle when they cross another line. Perpendicular lines intersect at a 90-degree angle, forming a square corner. We …

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

    Jul 23, 2025 · Parallel lines are two or more than two lines that are always parallel to each other, and they lie on the same plane. No matter how long parallel lines are extended, they never meet.

  7. 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 …

  8. 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.

  9. Parallel Lines - Definition, Examples, Quiz, FAQ, Trivia

    Parallel lines are lines in a plane that never meet. They are always the same distance apart, no matter how far you extend them in either direction. Think of railroad tracks - they run side by …

  10. Parallel Lines - Definition, Angles, Symbol & Real Examples

    This topic covers the definition of parallel lines, the symbol for parallel lines, the types of angles related to parallel lines, and examples of parallel lines in real life.