7th Class Mathematics Lines and Angles Some Terms Related to Lines

     Some Terms Related to Lines  

      Point                

It is a dimensionless figure which represents exact position. It is represented by a fine dot. We denote point by capital letters like A, B, C..........  

      Line Segment

It is the straight path between two points. In other words we can say that it has two end points and is of finite length.            

      Ray                

When line segment extends infinitely in one direction is a ray. Simply we can say that a ray has one end point and definite length.

      Line                   

When both end of line segment extended infinitely is known as a line. Simply we can say that line has no end point and definite length  

•    A line contains infinitely many points.
•    Through a given point infinitely many lines can be drawn.
•    One and only line can be drawn between two fixed points.  

      Concurrent Lines                    

If three or more than three lines intersect at a point then the lines are known a concurrent lines,     

      Intersecting Lines                

When two lines having one common point is called intersecting lines.