Question

the dome of a building is in a form of hemisphere. Its radius is 6.3m. Find the cost of painting it at the rate of RS 2. [Per sq m] use 3.14

Answer 1

Radius of hemispherical dome = 6.3 m

Inner surface area of dome = 2πr²

= 2 x 3.14 x (6.3)² = 249.48

So, Inner surface area of dome is 249.48 m²

Cost of painting 1m² = Rs.2

Therefore, cost of painting 249.48 m²

= (249.48 x 2)

= ₹498.96

Answer 2

Answer:

HOPE IT WOULD HELP YOU...