the volume of sphere is 310.4cm cube. find its radius
Answers
Answered by
6
Answer:
Volume of a sphere = 4/3πr³
38808 = 4/3πr³
38808 × 3/4 = πr³
29106 = πr³
π = 22/7
r³ = 29106 × 7/22
r³ = 9261
r = ∛9261
r = 21cm
Surface area of a sphere is 4πr²
4 × 22/7 × 21 × 21 = 5544cm²
Similar questions