Question

Calculate the volume of a hemisphere with radius $7$ cm. $(\pi =\frac{22}{7})$

• A. $718.67$ cm${}^3$
• B. $78.67$ cm${}^3$
• C. $18.67$ cm${}^3$
• D. None of these

Answer 1

The correct option is A $718.67$ cm${}^3$

Formula for volume of hemisphere $=\frac{2}{3}\pi r^3$
Given, $r=7cm$
Volume:

$V=\frac{2}{3}\times \frac{22}{7}\times 7^3=718.67c{m}^3$