Math, asked by prajaktapendkalkar20, 9 months ago

the radius of a cylindrical pillar of a building is 28cm and its height is 4.5cm .Rate of painting is ₹20per sq.m to paint this pillar.Find the cost of painting 5 such pillar​

Answers

Answered by krishkrishkumar946
3

Step-by-step explanation:

Area required for painting = 2 pi r h

= 2*22/7*28*4.5 =2*22*2*7

=616 cm square

Then The area required for painting 5 such pillars = 5*616

3080 cm square or 30.8 m square

Then cost for painting 5 pillar = 30.8*20

= 616 ruppes

Hope this will helped you

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