Comparative Study of POINT, LINE, LINE SEGMENT and RAY

POINT LINE SEGMENT

Point

The exact location of an object is call its Point. It has position only and no size i.e. no LENGTH, no BREADTH, and no DEPTH/HEIGHT.

It can be represented by a DOT i.e. the pictorial representation of Points are:

  Any Points can be named by using any CAPITAL LETTERS of the English Alphabets.

The names of the above Points are Point A, Point B, Point C, Point D, Point E, and Point F

Line

It is a One-Dimensional Figure without any thickness and extends endlessly in both Direction.

                                      

 

Taking any two points (say P and Q) on the above line, the name of the line can be write as

Line PQ or Line QP

 As line extends endlessly in both the direction, so we can say that it has

                                                                                                 NO DEFINITE LENGTH

 Line Segment

 A Line Segment is a part of Line which is formed by joining two Distinct Points.

POINT LINE SEGMENT

 

This is the Line Segment which is bounded by two Distinct Points A and B. So, the name of the Line Segment is AB or BA.

A line segment has a definite length which can be measure with the help of Ruler/Scale.

Ray

A Ray is a part of Line that has fixed starting point but no endpoint. It extend endlessly in one direction only and so, it has

NO DEFINITE LENGTH

                                         

The Name of the above Ray is Ray CD (Fix Point is C)

                       Ray CD ≠ Ray DC because both have different Fix Point (Fix Point of Ray CD is Point C and Fix Point of Ray DC is Point D)

Properties of Rational Numbers