Question

diameter and height of a cylindrical pillar are 50 cm and 3.5m respectively find the cost of painting the curved surface of pillar at a rate of Rs. 12.50 per metre square
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Answer 1

Answer:

₹6.875

Step-by-step explanation:

formula:2πrh

2πrh

2×22/7×50/200m×3.5m

44×1/4m×0.5m

11m×0.5m

5.5 m sq.

1 m sq.= ₹12.50

5.5m sq.= 12.50×5.5

= ₹6.875

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