NCERT Exercise 11.2 Q5 - Surface Areas and Volumes

Question: A hemispherical bowl made of brass has inner diameter 10.5 cm. Find the cost of tin-plating it on the inside at ₹16 per 100 cm².

Answer: Cost of tin-plating = ₹27.72.

Full step-by-step NCERT solution with diagrams on Something by Zero.