A Rectangle has 4 sides

and opposite sides of a Rectangle are equal.

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Let AB = l & BC = b

 

So, CD = AB = l

  & AD = BC = b

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Thus,

  Perimeter = Sum of all sides

           = AB + BC + CD + AD

           = l + b + l + b

           = 2 l + 2b

           = 2( l + b)

 

So we can write,

Perimeter of rectangle = 2( l + b)

    where l is length and b is width of rectangle

   

  1. Chapter 11 Class 6 Algebra
  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.