Question

8.In a temple there are 16 cylindrical pillars.The radius of each pillar is 35cm and height is 5cm .Find the total cost of painting the curved surface area of all pillars at the rate of Rs 7.50 per m^(2) .​

Answer 1

Answer:

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Step-by-step explanation:

We have,

28

r = radius of cylindrical pillar = 28 cm = 100

h = height of cylindrical pillar = 4 m

..curved surface area of a cylindrical pillar = 22 28 2nrh = 2 X 4 cm? 100

22

.Curved surface area of 25 pillar = 2 x -- 7 Х

28

100

x 4 x 25m2 = 176m2

Hence, total cost of painting at the rate of Rs 8 per m? = Rs(176 x 8) = Rs 1408