Question

Math perimeter
Q-1 perimeter of Square

(i) 6 cm

(ii) 9 cm

(iii) 4.5 cm

(iv) 5.5 cm


IV. Find the perimeter of squares whose one side is given below.

(i) 15 m

(ii) 12.4 cm

(iii) 0.25 m

(iv) 6 mm

(v) 1.2 km



V. Find the perimeter of rectangle having the following sides.

(i) length = 5 cm, breadth = 3 cm,

(ii) length = 9 cm, breadth = 4 cm,

(iii) length = 7.5 cm, breadth = 4.5 cm,

(iv) length = 8.4 cm, breadth = 5.6 cm


VI. Find the perimeter of rectangles with the given dimensions.

(i) Length = 12 cm, Breadth = 4 cm

(ii) Length = 1.5 m, Breadth = 0.6 m

(iii) Length = 100 mm, Breadth = 35 mm

(iv) Length = 13 km, Breadth = 8 km

(v) Length = 11 m, Breadth = 70 cm


VII. Find the length of side of squares whose perimeter is given below:

(i) 48 cm

(ii) 56 m

(iii) 10.4 km

(iv) 7.2 m

(v) 360 mm


VIII. Which of the figures given below have the most and least perimeter?

Most and Least Perimeter
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IX. Find the unknown sides of the given figure:

Find the Unknown Side
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Worksheet on Word Problems on Perimeter of Triangle, Squares and Rectangle:


X. Solve the following.

(i) The length of a rectangle field is 200 m. If its perimeter is 700 m, find its breadth.

(ii) The sides of a triangular park are 14 m, 17 m and 20 m. Find its perimeter.​

Answer 1

Answer:

(i) Perimeter of the rectangular field = 240 m

2(l + b) = 240 m

l + b = 120 m

90 m + b = 120 m

b = 120 m – 90 m = 30 m

So, the breadth = 30 m.

(ii) Area of the rectangular field = l × b = 90 m × 30 m = 2700 m2

So, the required area = 2700 m2