Question

Find the volume of a hemisphere of radius $7dm$.

• A. $708.67d{m}^3$
• B. $818.67d{m}^3$
• C. $717.67d{m}^3$
• D. $718.67d{m}^3$

Answer 1

The correct option is D $718.67d{m}^3$

Volume of hemisphere $=$ $\frac{2}{3}\pi r^3=\frac{2}{3}\times \frac{22}{7}\times 7\times 7\times 7$

$=$ $718.67$ ${dm}^3$