in a building, there are 20 cylindrical pillars, the radius of each pillaris 70 cm and height is 1 m Find
the cost of painting the curved surface area of the pillars at the rate of Rs 6 per m2 ?
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Step-by-step explanation:
Curved Surface Area of cylindrical pillar = 2πrh
= 2 *22/7 *70 *1
= 440 m^2
C.S.A of such 20 cylindrical pillar = (20*440)
= 8800 m^2
The cost of painting = ₹ (8800*6)
= ₹ 52800
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