MCQ
Surface area of sphere of diameter 14cm is:
- A616cm2
- B516cm2
- C2244cm2
- D400cm2
✓
Answer
- 616cm2
Solution:
Surface area of sphere $=4\pi\text{r}^2$
Given that Diameter = 14cm
Radius $=\frac{14}{2}=7\text{cm}$
The surface area of sphere $=4\pi\text{r}^2$
$=4\times\frac{22}{7}\times7^2$
$=616\text{cm}^2$
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