The length of a rectangular park is 0.140 km and its breadth is 80 m.What is the perimeter of the park in meters? Three rounds of barbed wire are needed to fence the park.Find the cost of fencing the barbed wire cost rs 2.20 per metre.
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The cost of fencing is Rs 2904
We know that the perimeter of a rectangle of length l and breadth b is given as:
P = 2(l+b)
Given, length of the park, l = 0.140km = 140m [1km = 1000m]
Breadth, b = 80m
P = 2(140+80) m
= 440 m
As total wire needed is 3 times the perimeter.
So, length of total wire needed = 3*440m = 1320m
Cost of fencing at Rs 2.20 per meter is
= Rs (2.20*1320)
= Rs 2904
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