A cylindrical pillar is 60cm in diameter and3.5m in height find the cost of painting the curved surface of the pillars at the rate of Rs.14.50m square
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Answer:
r = 25 cm = 0.25 mh= 3.5 mC.S.A = 2π r h = 2 ×22/ 7 ×0.25 × 3.5 = 5.5 m²cost of painting
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Answer:Cost -RS 79.75
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