Question

Find the cost of painting 12 circular pillars of diameter 56cm and height 440cm at the rate of rs.50 per sq cm​

Answer 1

Answer:

Here is your answer

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Answer 2

Step-by-step explanation:

radius = 28 cm

hieght= 440cm

We should find the CSA of each pillar

CSA of cylinder =

$2\pi \ rh$

now putting values

2×22/7×28×440

=77,440 sq. cm

cost of painting 1pillar = Rs.50/ sq.cm

cost of painting 12 pillars = Rs46,464,000