Question

8. Find the cost of fencing a square field of side 35m at the rate of Rs 20 per metre.

Answer 1

Side of Square= 35m
For finding the cost we need to find the perimeter
Perimete of square= 4* side
=4*35m
=140 m
Cost of fencing= ₹20/m
Total cost= ₹20*140m
=2800

Answer 2

☆ Solution ☆

Given :-

• Side of square field = 35 m

• The cost of fencing 1 m = Rs. 20

To Find :-

• The cost of fencing a square field.

Step-by-Step-Explaination :-

As we know that :-

Perimeter of the square = 4 × side

Where,

• Side = 35 m

Putting the respective value,

Perimeter of the square = 4 × 35

Perimeter of the square = 140

Thus,

The perimeter of the square = 140 m

Now,

We know that :-

Cost of fencing 1 m = Rs. 20

So,

Cost of fencing 140 m = 20 × 140

Cost of fencing 140 m = Rs. 2,800

Thus,

The cost of a square field = Rs. 28,00