Question

The diameter of a hemispherical tank is 21m, then the volume of the tank
is ------------3
.

Answer 1

Step-by-step explanation:

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Answer 2

$Given \: diameter \: of \: a \: hemispherical$

$tank (d) = 21 \:m$

$Radius \: of \:the \: tank (r)$

$= \frac{d}{2}$

$= \frac{21}{2}\: m$

$\boxed { \pink { Volume \:of \:the \: hemisphere = \frac{2}{3} \pi r^{3} }}$

$V = \frac{2}{3} \times \frac{22}{7} \times \Big( \frac{21}{2}\Big)^{3}$

$= \frac{2}{3} \times \frac{22}{7} \times \frac{21}{2}\times \frac{21}{2} \times \frac{21}{2}$

$= \frac{11 \times 21 \times 21}{2}$

$= 2425.5 \:m^{3}$

Therefore.,

$\red{ Volume \: of \:the \:tank } \green {= 2425.5 \:m^{3}}$

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