Worksheet on Basic Concept of Perimeter

Practice the questions given in the worksheet on basic concept of perimeter. We know, total length of a closed figure is called the perimeter.

I. Find the perimeter of the following squares whose one side is given:

(i) 6 cm

(ii) 2 cm

(iii) 25 cm

(iv) 13 cm

(v) 90 cm

II. Find the perimeter of the following rectangles whose length and breadth are given respectively:

(i) 6 cm, 4 cm

(ii) 20 cm, 15 cm

(iii) 75 cm, 30 cm

(iv) 18 cm, 9 cm

(v) 25 cm, 10 cm

(vi) 50 cm, 30 cm

III. Find the perimeter of the following triangles whose length of three sides are given:

(i) 3 cm, 4 cm, 5 cm

(ii) 70 cm, 50 cm, 30 cm

(iii) 15 cm, 15 cm, 20 cm

(iv) 10 cm, 10 cm, 10 cm

(v) 6 cm, 8 cm, 10 cm

(vi) 13 cm, 5 cm, 12 cm

IV. Solve the following word problems:

(i) Find the distance travelled by Sharon if she takes 2 rounds of a square park of side 80 m.

(ii) A piece of string is 60 cm long. What will be the length of each side if the string is used to make a square, a rectangle and a triangle (all sides are equal).

(iii) Find the perimeter of the blackboard whose sides are 5 cm, 3 cm.

(iv) The perimeter of the square field is 100 cm. What is the length of each side?

(v) Aaron buys 5 square paving slabs each of side 1 cm. Find the perimeter of the arrangement shown with 5 slabs.

Answers for the worksheet on basic concept of perimeter are given below

Answers:

I. (i) 24 cm

(ii) 8 cm

(iii) 100 cm

(iv) 52 cm

(v) 360 cm

II. (i) 20 cm

(ii) 70 cm

(iii) 210 cm

(iv) 54 cm

(v) 70 cm

(vi) 160 cm

III. (i) 12 cm

(ii) 150 cm.

(iii) 50 cm

(iv) 30 cm

(v) 24 cm

(vi) 30 cm

IV. (i) 640 m

(ii) square = 15 cm, rectangle = 20 cm, 10 cm and triangle = 20 cm

(iii) 16 cm 

(iv) 25 cm

(v) 20 cm

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