Question

In a building there are 10 cylindrical pillars. The radius of each pillar is 28 cm and height is 7 m. Find the total cost of painting the curved surface area of all pillars at the rate of Rs 5 per sq.m

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

use the formula = 2πrh

2 x 22/7 x 0.28 (convert to m) x 7

=  12.32

12.32 x 5 = 61.6

so the cost will be = Rs. 61.6

HOPE THIS HELPS YOU!!