the diameter of a circular path is 84 metre on its outside there is 3.5 M Wide Road find the cost of constructing the road at rupees 240 per metre square
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Radius of the park = 84/2 = 42m
area of the park = (22/7)×42×42 = 5544m^2
width of road = 3.5m
.•.total radius = 3.5+42 = 45.5m
total area = (22/7)×45.5×45.5 = 6506.5m^2
area cover by the road=6506.5-5544= 1062.5m^2
total cost of constructing the road=1062.5×240=Rs255000
area of the park = (22/7)×42×42 = 5544m^2
width of road = 3.5m
.•.total radius = 3.5+42 = 45.5m
total area = (22/7)×45.5×45.5 = 6506.5m^2
area cover by the road=6506.5-5544= 1062.5m^2
total cost of constructing the road=1062.5×240=Rs255000
yogita59:
I am really sorry but it is wrong
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