Suppose we have two line segments

AB & PQ

6.jpg

 

We know that AB & PQ are congruent if

  • They have same shape
  • They have same size

Now,

  All line segments are of the same shape.

 

So, line segments with same size are congruent.

 

Therefore,

  Two line segments are congruent if they have the same length

 

Other examples can be

7.jpg

 

  1. Chapter 7 Class 7 Congruence of Triangles
  2. Concept wise
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Davneet Singh
Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 8 years. He provides courses for Maths and Science at Teachoo. You can check his NCERT Solutions from Class 6 to 12.