Question

A dome of a building is in form of a hemisphere . form inside it was white - washed at the of rupees 4989.60 if the cost of white washing is rupees 20 per square metre find the
a- inside surface area of the dome
b - volume of the air inside the dome ​

Answer 1

Step-by-step explanation:

Total cost = 498.96 Rs. => Area whitewashed = 249.48 Rs. And according to the question, the area whitewashed is Curved surface area of hemisphere. => 523.908 m³ (approx.)