find the cost of erecting a fence a fence whose area is 729 hectares at the rate of rupees 1.50 per metre
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Given My ans
Step-by-step explanation:
GIVEN
AREA OF THE SQUARE FIELD = 729 ha = 729 × 100 = 72900m
RATE OF FENCING = ₹1.50 per meter
Cost of erecting a fence around the square field = perimeter of the square field × rate of fencing
= area of square = lenght × lenght(L×L)
72900sq.m = L^2
L =. √72900
L. =. 270
Now we got the lenght.
perimeter of square= 4 × length
=. 4 × 270
= 1080m
rate of fencing = ₹1.50
Cost of erecting a fence around the square field = perimeter of square × rate of fencing
= 1080m ×1.50m = ₹1620.00
So the cost of erecting a fence around the square field = ₹1620
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