Question

find the expenditure of putting a barbed wire around a 4 hectare square field, if it costs 45 per metre . ( use 1 hectare = 10,000m²​

Answer 1

Answer:

45×800 = Rs. 36,000.

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Answer 2

Answer:

C = 45×800 = Rs. 36,000.

Step-by-step explanation:

Area of square shaped farm = 4 hectares

= 10,000 m² [ 1 hectare = 10,000 sq m]

Hence area of farm = 40,000 square meters.

Area of square = (side)²

(side)² = 40,000

side = √40000

side = 200 m

Perimeter of square = 4(side)

4 × 200m

800

Given cost of fencing is Rs. 45 per meter

Hence total cost for fencing 800 m = 45 × 800 = Rs. 36,000