Question
If the volume and surface area of a sphere are numerically the same, then its radius is :
Answer: Option C
$$\eqalign{
& \frac{4}{3}\pi {r^3} = 4\pi {r^2} \cr
& \Rightarrow r = 3 \text{ units} \cr} $$
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$$\eqalign{
& \frac{4}{3}\pi {r^3} = 4\pi {r^2} \cr
& \Rightarrow r = 3 \text{ units} \cr} $$
Was this answer helpful ?
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