Circumference of the base of a cylinder open at the top is 132cm. The sum of radius and height of the cylinder is 41cm. Find the cost of polishing the outer surface area of cylinder at the rate of rupees 10 per square m
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Circumference of base=2πr =132cm
sum of height and radius = 41cm
CSA of cylinder = 2πr(h+r)
= 132×41cm^2
= 5392cm^2
Cost of polishing per metre^2 =Rs.10
Total cost of polishing this cylinder = Rs.10×5392
=Rs.53920
sum of height and radius = 41cm
CSA of cylinder = 2πr(h+r)
= 132×41cm^2
= 5392cm^2
Cost of polishing per metre^2 =Rs.10
Total cost of polishing this cylinder = Rs.10×5392
=Rs.53920
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