Question

Find the height of the cylinder whose volume is $1.54m^3$ and diameter of the base is $140cm$?

Answer 1

Diameter of the base $=140cm$

Therefore, radius of the base $\left(r\right)=\frac{140}{2}=70cm$ or $0.7m$

Now, we know that,

Volume of a cylinder $=\pi r^{2}h$

$\Rightarrow \frac{22}{7}\times \left(0.7\right)\times \left(0.7\right)\times h=1.54$

$\Rightarrow h=\frac{1.54\times 7}{22\times 0.7\times 0.7}$

$\Rightarrow h=1$

Therefore, height of the cylinder is $1m$.