Question

in a building there are 24 cylindrical pillars. the radius of each pillar is 28 cm and height 4 m. what will be the cost of painting the curved surface area of all pillars at the rate of 4 Rs/ meter square.Kipp​

Answer 1

Answer:

curved surface area of cylinder is 2πrh

so, 2 × π × r × h = 2 × 22/7 × 28/100 × 4

= 44/100

now, cost = 44/100 × 24 × 4

= 42.24

Answer 2

Answer:

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