Question

In a building there are 24 cylindrical pillars. The radius of each pillar is 28cm and height is 4m. Find the total cost of painting the curved surface area of all the pillars at the rate of Rs. 8 per m square.

Answer 1

Answer:

₹56.32

Step-by-step explanation:

CSA of cylinder= 2πRH

R=28CM=0.28M

H=4M

NOW,

CSA of cylinder=2*(22/7)*0.28*4

                         =2*22*0.04*4

                         =44*0.16

                         =7.04m²

Now,

Cost=cost per m² * Area

      =8*7.04

      =₹56.32

Answer 2

$\huge\bf{Answer:-}$

Yes

Explanation

Refer the attachment.