Question

Find the perimeter of the rectangles whose dimensions are given below.
(a) Length = 40 m, Breadth = 15 m (b) Length = 18 m, Breadth = 13 m
(c) Length = 32.5 cm, Breadth = 27.5 cm (d) Length = 65 cm, Breadth = 4.5 cm
217​

Answer 1

Answer:

(a)110cm

(b)42cm

(c)120cm

(d)139cm

Answer 2

☆ Solution ☆

a) Given :-

• Length of the rectangle = 40 m

• Breadth of the rectangle = 15 m

To Find :-

• The perimeter of rectangle.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• Length of the rectangle = 40 m

• Breadth of the rectangle = 15 m

Putting the respective value,

Perimeter of the rectangle = 2 ( 40 + 15 )

Perimeter of the rectangle = 2 × 55

Perimeter of the rectangle = 110

Hence,

The perimeter of the rectangle is 110 m.

b) Given :-

• Length of the rectangle = 18 m
• Breadth of the rectangle = 13 m

To Find :-

• The perimeter of rectangle.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• Length of the rectangle = 18 m

• Breadth of the rectangle = 13 m

Putting the respective value,

Perimeter of the rectangle = 2 ( 18 + 13 )

Perimeter of the rectangle = 2 × 31

Perimeter of the rectangle = 62

Hence,

The perimeter of the rectangle is 62 m.

c) Given :-

• Length of the rectangle = 32.5 cm

• Breadth of the rectangle = 27.5 cm

To Find :-

• The perimeter of rectangle.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• Length of the rectangle = 32.5 cm

• Breadth of the rectangle = 27.5 cm

Putting the respective value,

Perimeter of the rectangle = 2 ( 32.5 + 27.5 )

Perimeter of the rectangle = 2 × 60

Perimeter of the rectangle = 120

Hence,

The perimeter of the rectangle is 120 cm.

d) Given :-

• Length of the rectangle = 65 cm

• Breadth of the rectangle = 4.5 cm

To Find :-

• The perimeter of rectangle.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the rectangle = 2 ( length + breadth )

Where,

• Length of the rectangle = 65 cm

• Breadth of the rectangle = 4.5 cm

Putting the respective value,

Perimeter of the rectangle = 2 ( 65 + 4.5 )

Perimeter of the rectangle = 2 × 69.5

Perimeter of the rectangle = 139

Hence,

The perimeter of the rectangle is 139 cm.