Perimeter of square

Last updated at April 16, 2024 by

Let’s take a square

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We know that

In a square, all sides are equal

  AB = BC = CD = AD

 

Let AB = a

So,

     AB = BC = CD = AD = a

Perimeter of square - Part 2

Now,

  Perimeter of square = Sum of all sides

    = AB + BC + CD + AD

    = a + a + a + a

   = 4a

   = 4 × Side of square

So,

        Perimeter of square = 4a

          = 4 × Side of square

 

Let’s solve some examples

 

Find perimeter of a square whose side is 15 cm

Perimeter of square - Part 3

Given,

  Side of square = a = 15 cm

 

So,

  Perimeter of square = 4 × side of square

    = 4a

    = 4 × 15

    = 60 cm

 

Thus, Perimeter of square is 60 cm

 

Find perimeter of a square whose side is 0.5 m

Perimeter of square - Part 4

 

Given,

  Side of square = a = 0.5 m

   = 0.5 × 100 cm  (1m = 100 cm)

   = 50 cm

 

So, Perimeter of square = 4 × Side of square

= 4a

= 4 × 50

= 200 cm

 

= 200/100 m         (1 cm =  1/100 m )

= 2 m

 

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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, Social Science, Physics, Chemistry, Computer Science at Teachoo.