Question

Find the cost of erecting a fence around 2 a square whose area is 4 hectares. Fencing cots Rs. 25 per meter.​

Answer 1

Step-by-step explanation:

I think your answer is ₹ 200

Answer 2

Find the cost of erecting a fence around a square field whose area is 9 hectres if fencing cost Rs.3.50 per metre (1hectare=10000m

2

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Correct option is

A

4200

Area of the field=9 hecters

=9×100×100m

2

∴ Side of the square field=3×100m

2

Length of fencing=Perimeter of the square field.

=4×300m=1200m

∴ Cost of fencing=3.50×1200

=Rs.4200

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