Question

cylindrical pillar of height 5m & radius 14m is to be painted. Find the cost of painting it,

if the rate of painting is Rs 5 per m please answer fast with full explanation​

Answer 1

Answer:

given,

r =14 m

h = 5 m

area that should be painted is CSA of cylinder

so,

CSA of cylinder = 2πrh

= 2×22/7×14 ×5

= 2×22×2×5

=44×10

=440m^2

cost of painting at the rate of rs 5 m^2

440m^2 ×5= ₹2200.