Question

In a building there are 48 cylindrical pillars. The radius of each pillar is 56 cm and height is 7 cm. Find the total cost of painting the curved surface area of all pillars rate of rs 16 per m 2.​

Answer 1

Answer:

Rs 9,453.15 is the answer

Step-by-step explanation:

Radius of cylindrical pillars

= r = 56cm =0.56m

height ,h=7m

curved surface area of a cylinder =2πrh

curved surface area of a pillar= 2×3.14×0.56×7=24.6176metresq.

Curved surface area of 48 such pillars =24.6176×48=1181.6448metresq.

cost of cementing an area of 1 metresq. =Rs8

(16/2)

so, cost of painting 1181.6448 metresq.=1181.6448×8=Rs 9,453.15

hope it helps u!

Answer 2

Answer:

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Step-by-step explanation:

if you are means just like my answer if you not don't