A hemispherical tank has inner radius of $2.8\ m$. Find its capacity in litres.

 Given:

A hemispherical tank has an inner radius of $2.8\ m$.

To do:

We have to find its capacity in litres.

Solution:

Radius of the hemispherical tank $(r) = 2.8\ m$

Therefore,

Volume of the tank $=\frac{2}{3} \pi r^{3}$

$=\frac{2}{3} \times \frac{22}{7} \times 2.8 \times 2.8 \times 2.8$

$=45.99 \mathrm{~m}^{3}$

Capacity in litres $=45.99 \times 1000$ litres           (Since $1 \mathrm{m}^{3}=1000$ litres)

$=45990 $litres

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Updated on: 10-Oct-2022

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