Chemistry, asked by ds637324, 5 months ago

A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting
curved surface of the pillar at the rate of 25
per
m2​

Answers

Answered by Anonymous
2

Answer:

Given:

H=3.5 m, R=

2

50

=25 cm =

100

25

=0.25 m

⇒CSA=2πrh=(2×

7

22

×0.25×3.5) m

2

=5.5 m

2

⇒Cost of painting 1 m

2

area = Rs.12.50

⇒Cost of painting 5.5 m

2

area

= Rs.5.5×12.50

= Rs.68.75

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