Question

Find the perimeter of a rectangular ground whose sides are 40 m and 10 m
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Answer 1

Answer:

p = 2 × (l + b)

p = 2 × (40 + 10)

p = 2 × 50

p = 100

Therefore , the answer is 100

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Answer 2

Answer :-

• The perimeter of the rectangular ground = 100 m.

Given :-

• Length of the ground = 40 m.
• Breadth of the ground = 10 m.

To find :-

• The perimeter of the ground.

Step-by-step explanation :-

• In this question, the length and breadth of a rectangular ground has been given to us. We have to find it's perimeter. For this, we will use the formula required for finding the perimeter of a rectangle, since the ground is in the shape of a rectangle.

Calculations :-

We know that :-

$\underline{\fbox{\sf Perimeter of a rectangle = 2 (L + B)}}$

Here,

• Length = 40 m.
• Breadth = 10 m.

Substituting these values in the given formula,

$\tt Perimeter = 2 \: (40 + 10)$

Adding 10 to 40,

$\tt Perimeter = 2 \: (50)$

Removing the brackets,

$\tt Perimeter = 2 \times 50$

Multiplying 2 by 50,

$\tt Perimeter = 100 \: m$

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• Hence, the perimeter is 100 m.