A cylindrical piller has a diameter of 56 cm and is of 35 m high. There are 16 pillars
around the building. Find the cost of painting the curved surface area of all the pillars at
the rate of 5.50 per 1 m2
?
Answers
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Answer:
₹ 5421
Step-by-step explanation:
gn 2r = 56 cm
= 56/100 m
h = 35 m
Curved surface area of 1 pillar
= 2πrh
= 22/7 × 56/100 × 35
C.S.A of 16 pillars
= 16 × 22/7× 56/100 × 35
= 4 × 22 × 56/5 m²
Total cost = 5.5 × 4 × 22 × 56/5
= 1.1×88×56
= 5420.8
= 5421 (approximately}
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