Question

videos of a hemisphere is 21 centimeter.Find its volume​

Answer 1

Answer:

19404 cm³

Step-by-step explanation:

Information provided in the question,

Radius of hemisphere, r = 21 cm

As we know, the volume of a hemisphere can be calculated using the following formula,

$\frac{2}{3} \pi {r}^{3}$

where, 'r' is the radius of the hemisphere.

Here, r = 21 cm

Hence, we substitute the value in the above formula,

$\frac{2}{3} \pi {(21)}^{3} \\ \\ = \frac{2}{3} \times \frac{22}{7} \times 9261 \\ \\ = \frac{44 \times 9261}{21} \\ \\ = 44 \times 441 \\ \\ = 19404 \: cm {}^{3}$