Question

The length of side a square field is 16 m. Find the area of the square field and cost of fixing the fence along the boundary of the field at the rate of ₹ 3.20 per metre.

• A. $265m^2$ , ₹ 64
• B. $256m^2$ , ₹204.8
• C. $256m^2$ , ₹ 64
• D. $64m^2$ , ₹ 256

Answer 1

The correct option is B

$256m^2$ , ₹204.8

Area of a square = Side $\times$ Side
= 16 $\times$ 16
= $256m^2$
Since the fencing is done along the boundary of the field, we need to find the perimeter of the square field.
Perimeter = 4 $\times$ 16 = 64 m
Hence, the cost of fencing the field is 64 $\times$ ₹ 3.20 = ₹ 204.8