Chapter: Mensuration· Mathematics Part 2 (Geometry)
Answer: r = 21 cm
\(\dfrac{4}{3} \times \dfrac{22}{7} \times r^3 = 38808\) \(\therefore r^3 = \dfrac{38808 \times 21}{88} = 441 \times 21 = 9261\)
\(\therefore r = \sqrt[3]{9261} = 21\) cm (since \(21^3 = 9261\)).