A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard . each one has a base diameter of 40cm and hieght 1 metre . if the outer side of each of the conesis to be painted and the cost of painting i
A bus stop is barricaded from the remaining part of the road, by using 50 hollow cones made of recycled cardboard . each one has a base diameter of 40cm and hieght 1 metre . if the outer side of each of the conesis to be painted and the cost of painting is Rs 12 m2, what will be the cost of painting all these cones ? (use pie= 3.14 and take root1.4 = 1.02)