Question

find the cost of erecting a fence around a square feild , whose area is 729 hectares at the rate of Rs. 1.50 per meter​

Answer 1

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