Select Board & Class



  • A point determines a location. The tip of a compass, the sharpened end of a pencil, the pointed end of a needle, etc., are the examples of points. Generally, points are denoted by capital letters.
  • A line segment corresponds to the shortest distance between two points. The line segment joining the points P and Q is denoted as .


  • A ray is a portion of a line, which starts at one point and goes endlessly in a direction.


This ray is denoted as . Arrow head is towards Q since it is extended along Q.

  • When a line segment PQ is extended indefinitely on both sides of points P and Q, it becomes a line, . Line is usually denoted by small letters l, m, n.


  • Two lines l and m are said to be intersecting lines, if they intersect at a point.


  • Two lines are said to be parallel lines, if they never intersect eac…

To view the complete topic, please

What are you looking for?