Question

The diameter of the base of a cylinder is 4 cm and its height is 14 cm. The volume of the cylinder is
(a) 176 cm³
(b) 196 cm³
(c) 276 cm³
(d) 352 cm³

Answer 1

(a) 176 cm³
Volume of the cylinder$=\mathrm{\pi }{r}^{2}h$
$$\begin{gathered} =\left(\frac{22}{7}\times 2\times 2\times 14\right)\left[d=4\text{cm}\Rightarrow r=\frac{4}{2}\text{cm}=2\text{cm}\right] \\ =176{\text{cm}}^3 \end{gathered}$$