# A conical tank is 3 m deep and its circular top has radius 1.75m . Find the capacity of the tank in kilolitres.

Soluition We have , $r=1.75m$   and    $h=3m$

$\therefore$              capacity of the tank

$=\frac{1}{3}\pi r^2h$

$\Rightarrow$           capacity of the tank $=$

$\frac{1}{3}\times \frac{22}{7}\times1.75\times1.75\times3 m^3$

$\Rightarrow$             capacity of the tank $=9.625m^3=9.625kilolitre$                    $[\because 1m^3=1kilo litre]$

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