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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