Question

A conical pit of top diameter 3.5 m is 12 m deep.What is its capacity in kilolitres?

Answer 1

Diameter of the top of the conical pit=3.5 m

$\therefore Radius\left(r\right)=\frac{3.5}{2}=1.75manddepth\left(h\right)=12m$

$\therefore Volumeofpit=\frac{1}{3}\pi r^{2}h=\frac{1}{3}\times \frac{22}{7}\times 1.75\times 1.75\times 12m^3=38.5m^3\therefore Volumeinkilolitres=\frac{38.5\times 1000}{1000}(1m^3=1000l)=38.5kilolitres$