Check sibling questions

Let us consider a semicircle ABC

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Perimeter of semicircle will be the distance around it

Perimeter of Semicircle - Part 2

So,

  Perimeter of semicircle = 𝜋r + 2 r

 = r(𝜋 + 2)

Let us take an example:

 

 

Find perimeter of a semicircle with radius of  2 cm

Perimeter of Semicircle - Part 3

Radius = r

    = 2 cm

 

Perimeter of semicircle = r (𝜋 + 2)

       = 2 (3.14 + 2)

       = 2 (314/100+2)

       = 2 ((314 +  2 × 100)/100)

       = 2 ((314 + 200)/100)

       = 2 (514/100)

       = 1028/100  = 10.28 cm

 

 

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Davneet Singh is a graduate from Indian Institute of Technology, Kanpur. He has been teaching from the past 12 years. He provides courses for Maths and Science at Teachoo.