Question

The total surface area of a sphere is, $154{cm}^2$. Its radius is 3.5 cm. Find its volume.

• A. $169.77{cm}^3$
• B. $189.07{cm}^3$
• C. $159.27{cm}^3$
• D. $179.67{cm}^3$

Answer 1

Answer: (D)

$179.67{cm}^3$

solution:

volume of sphere is: $\frac{4}{3}\pi r^3$

V = $\frac{4}{3}\times 3.14\times (3.5{)}^3$

$V=179.5c{m}^3$

hence the correct opt: D