a cylindrical pillar is 5cm in diameter and 3.5 m in height .find the cost of painting the curved surface of the pillarPillar at the rate of 12.50 per m2
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Answer:
₹7 (approx.)
Step-by-step explanation:
r = 2.5 cm = 0.025 m (Divide by 100)
h = 3.5 m
= CSA of the cylindrical pillar = 2πrh
= 2 * π * 0.025 * 3.5
= 0.55 m²
Cost of painting = 12.50 * 0.55
= ₹ 6.875 = ₹7 (approx.)
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