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

Perimeter of rectangle as a Variable - Part 2

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

   

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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 13 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.