a cylinder vessel open at the top has a base of radius10.5 cm and height 14 cm. find the cost of painting the innee vessel at the rate of rupees 10 per hundered sq. cm.
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Given,
Radius = 10.5 cm
Height = 14 cm
Inner Area = CSA + Area of base.
=> Inner Area = 2πrh + πr^2
=> Inner Area = 2 x 22/7 x 10.5 x 14 + 22/7 x 10.5 x 10.5
=> Inner Area = (924 + 346.5) cm^2
=> Inner Area = 1270.5 cm^2
Now,
=> Cost of per hundred cm^2 = Rs (1270.5 x 10/100)
=> Cost = Rs 127.05
Be Brainly
Radius = 10.5 cm
Height = 14 cm
Inner Area = CSA + Area of base.
=> Inner Area = 2πrh + πr^2
=> Inner Area = 2 x 22/7 x 10.5 x 14 + 22/7 x 10.5 x 10.5
=> Inner Area = (924 + 346.5) cm^2
=> Inner Area = 1270.5 cm^2
Now,
=> Cost of per hundred cm^2 = Rs (1270.5 x 10/100)
=> Cost = Rs 127.05
Be Brainly
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