MCQ
The volume of a sphere is numerically equal to its surface area, then its diameter is:
- A2 units.
- B6 units.
- C3 units.
- D1 unit.
✓
Answer
- 6 units.
Solution:
Volume of sphere = surface area of sphere
$\frac{4}{3\pi\text{r}^3}=4\pi\text{r}^2$
r = 3 units
So, diameter = 6 units
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