find the cost of erecting a fence around a square field whose area is 16 hectares,if fencing costs ₹ 5 per metre
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Step-by-step explanation:
1 hectare = 10000m square
16 hectares = 160000 m square
side = √ area
= √ 160000 = 400m
perimeter = 4 × side
= 4 × 400 m = 1600m
Total cost = 5 × 1600
= ₹ 8000
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