find the cost painting a closed cylindrical drum whose radius is 49cm and height 2m,if the cost of painting is rs.2per sq.cm
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the cost of painting the cylindrical drum is 1232
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42
Answer:₹153384
Step-by-step explanation:
radius = 49cm
height = 2m = 200cm
total surface area = 2πrh+2×πr²
=61600+15092
= 76692cm²
so the cost of painting is 76692 × 2
= ₹153384
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