Question

the area of a square is 81 hectares. find the cost of fencing the field with a wire at the rate of $2.25 perimeter

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Answer 1

ANSWER

Area =9 hectare

Rate = Rs32/m

To find,

Area = 9 hectare

Area (meter) = 90,000 square meter

area of square =a

2

90,000m

2

=a

2

a=

90,000

a=300m

Therefore, the side of square field is 300

Now, we will find the perimeter.

perimeter=4a

perimeter=4(300)

perimeter=1200m

cost of fencing of square field =perimeter×rate

cost of fencing of square field =1200×32

cost of fencing of square field =Rs38,400

Therefore, cost is Rs 38,400

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Answer 2

Answer:

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