A cylindrical pillar is 50 cm in diameter and 3.5 metre in height. find the cost of painting the curved surface area of the pillar at the rate of ₹12.50 per metre square.
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Answered by
7
Answer:
Hey mate here is your answer☺️☺️
R = 25 cm = 0.25 m
h= 3.5 m
C.S.A = 2π r h
= 2 ×22/ 7 ×0.25 × 3.5 = 5.5 m²
cost of painting the curved surface of the pillar = 5.5× 12.50 = Rs 68.75
hope it helps you ✌️✌️
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Answered by
1
Step-by-step explanation:
curved surface area = 2pie*r*h
=2*22/7*25*350
=55000 cm^2
=5.5m^2
cost of painting=5.5*12.50
=68.75
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