Let's consider a square ABCD

20.jpg

A Square has 4 equal sides

Let side of square = a

So, AB = BC = CD = AD = a

 

Thus,

     Perimeter = Sum of sides

      = a + a + a + a

      = 4a 

 

So, we can write

Perimeter of square = 4a

       where a is the side of square

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science and Computer Science at Teachoo