Question

A dome is in the form of hemisphere from inside it was White washed at the cost of rupees 496 8.96 if the cost of white washing is 2.00 per square meter. find the inner surface areas of dome and volume of air inside the dome

Answer 1

Answer:

Step-by-step explanation:

CSA of dome=2πr^2

Cost of white-washing=2×2πr^2=4968.96

radius=√394.8

Radius=19.86

Inner surface area=2πr^2

=2479.20 approx.