Question

The volume of a cylinder is 2512 cu cm and its height is 12.5 cm. Find the radius of its base. (Take π = 3.14)

Answer 1

Radius of cylinder (r) = ?
Height of cylinder (h) = 12.5cm
Volume of cylinder = 2512 cu cm
Volume of a cylinder = πr²h
⇒ 2512 = 3.14 × r² × 12.5
$$\begin{gathered} \Rightarrow r^2=\frac{2512}{3.14\times 12.5} \\ \Rightarrow r^2=64 \\ \Rightarrow r=8\mathrm{cm} \end{gathered}$$