Perimeter

Last updated at April 16, 2024 by

Suppose we have a park like this

1.jpg

And I run along the boundary from point A & back to point A

This blue line is the perimeter of the figure

Perimeter is distance along the boundary of a closed figure

 

Let’s take some examples.

 

Find Perimeter

Perimeter - Part 2

 

Perimeter = Sum of all sides

 = AB + BC + CD + AD

 = 40 + 10 + 40 + 10

 = 100 cm

 

Find Perimeter

Perimeter - Part 3

 

Perimeter = Sum of all sides

         = AB + BC + CD + DA

 = 5 + 5 + 5 + 5

 = 20 cm

 

Find Perimeter

Perimeter - Part 4

 

Perimeter = LA + AB + BC

         + CD + DE + EF

         + FG + GH + HI

                + IJ + JK + KL

= 3 + 1 + 3 + 3 + 1 + 3 + 3 + 1 + 3 + 3 + 1 + 3

= 7 + 7 + 7 + 7

= 28 cm

 

Find Perimeter

Perimeter - Part 5

 

Perimeter = AB + BC + CD + DE + EF + FA

 = 100 + 120 + 90 + 45 + 60 + 80

 = 220 + 135 + 140

 = 355 + 140

 = 495 m

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