Question

8. A dome of a building is in the form of a hemisphere. From inside, it wa
whitewashed at the cost of 498.96. If the cost of whitewashing is
2.00 /m2, find the
(a) inside surface area of the dome.
(b) volume of air inside the dome.​

Answer 1

Answer:

the inner surface area of the dome is nothing but the total cost of whitewashing divided by the rate per metre. hence inner surface area= 498.96 / 2 = 249.48 m^2.