Question

The area of a square field is 4 hactare. Find the cost of fencing the field at the rate of ₹2.50 per meter​

Answer 1

$\large\underline{\sf{Solution-}}$

1 hectare means 10,000m²

So, 4 hectare means 40,000m²

We know,

Area of the square = (side)² = Area

(Let side be x)

x² = 40,000m²

x =√40,000m²

= 200m

Side = 200m

So, Perimeter = 4 × side

= 4 × 200m

= 800m

Cost of fencing / per m = ₹2.50

800m will cost (800m × ₹2.50) = ₹2000.

Hence, cost of fencing will be ₹2000.

Answer 2

Step-by-step explanation:

one hactare =10,000 metres

4hactare=4×10,000=40,000metre

let the side be X

x square =40000m

x=√40000

x=200

cost of fencing per metre=2.50 rs

cost of fencing four metre =2.50(4×200)

=2.50×800

=2000rs answer

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