Question

perimeter of a rectangular field is 72 cm. if the length is 20 cm find its breadth​

Answer 1

Given:

• Length of rectangular field = 20 cm
• Perimeter of rectangular field = 72 cm

To Find:

• Breadth of the rectangular field ?

Solution:

Let the breadth rectangular of the rectangular field be "x".

As we know that,

⋆ Perimeter of rectangle = 2(Length + breadth)

Putting the values,

➜2(20 + x) = 72

➜ (20 + x) = 72/2

➜ 20 + x = 36

➜ x = 36 - 20

➜ x = 16 cm

Hence,

Breadth of rectangular field is 16 cm.

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Answer 2

☆ Solution ☆

Given :-

• The perimeter of a rectangular field is 72 cm.
• The length of rectangular field is 20 cm .

To Find :-

• The breadth of rectangular field.

Step-by-Step-Explaination :-

Let the breadth of rectangular field be b

As we know that :-

Perimeter of rectangle = 2 ( l + b )

Putting the respective value,

72 = 2 ( 20 + b )

72 = 40 + 2b

72 - 40 = 2b

32 = 2b

b = 32/2

b = 16

Hence,

The breadth of rectangular field = 16 cm