Question

A cylindrical pillar is 100cm in diameter and 2.5m in height.find the cost of painting curved surface area of pillar at rate of rupees 12.50per square ??


it's Isha​

Answer 1

Answer:

ans is 13.45

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

The diameter of the cylinder is 100 cm = 1 m

it's radius is = 0.5 m

The height of the cylinder is = 2.5 m

So it's CSA is = 2πrh

= 2×3.14×0.5×2.5 m²

= 2×314/100×5/10×25/10

= 7.85 m²

And the cost of painting is = (12.5)(7.85)

98.125 Rs/-

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