Question

The circumference of the base of a cylinder is 88 cm and its height is 60 cm. Find the volume of the cylinder and its curved surface area.

Answer 1

Circumference of the base = 88 cm
Height = 60 cm

Area of the curved surface $=circumference\times height=88\times 60=5280c{m}^2$
Circumference $=2\mathrm{\pi r}=88cm$
Then radius$=r=\frac{88}{2\mathrm{\pi }}=\frac{88\times 7}{2\times 22}=14cm$
∴ Volume$={\mathrm{\pi r}}^2\mathrm{h}=\frac{22}{7}\times 14\times 14\times 60=36960{\mathrm{cm}}^3$