Use the Fig. 9.57 showing the layout of a farm house:

A fence is to be enclosed around the house. The dimensions of the house are 18.7 m × 12.6 m. At least how many metres of fencing are needed?

Solution:

It is given that,

Dimension of the house = 18.7 m x 12.6 m

We know that,

Perimeter of the house = 2 (l + b)

By substituting the values,

= 2 (18.7 + 12.6)

So we get,

= 2 (31.3)

= 62.6 m

Therefore, 62.6 m of fencing is needed.

✦ Try This: How much distance, in metres, a wheel of 35 cm radius will cover if it rotates 450 times?

☛ Also Check: NCERT Solutions for Class 7 Maths Chapter 11

NCERT Exemplar Class 7 Maths Chapter 9 Problem 112(c)

Use the Fig. 9.57 showing the layout of a farm house: A fence is to be enclosed around the house. The dimensions of the house are 18.7 m × 12.6 m. At least how many metres of fencing are needed?

Summary:

Using the Fig. 9.57 showing the layout of a farm house, a fence is to be enclosed around the house. The dimensions of the house are 18.7 m ×12.6 m. 62.6 m of fencing is needed.

☛ Related Questions:

• Use the Fig. 9.57 showing the layout of a farm house: Each banana tree required 1.25 m² of ground sp . . . .
• Study the layout given below in Fig. 9.58 and answer the question: Write an expression for the total . . . .
• Study the layout given below in Fig. 9.58 and answer the question: Write an expression to calculate . . . .