Question

The diameter of a cylinder is $28$cm and its height is $20$cm find the volume of the cylinder.

Answer 1

Diameter of the cylinder$=28$cm

$\therefore$ Radius of the cylinder$=r=\frac{28}{2}=14$cm

Height of the cylinder$=h=20$cm

$\therefore$ Volume of the cylinder$=\pi r^{2}h=\frac{22}{7}\times 14\times 14\times 20=12320$cu.cm