Question

The diameter of the base of a right circular cylinder is 42cm and it's height is 10cm. Find the volume of the Cylinder

Answer 1

Given:
d = 42 cm
r = d/2 = 42/2 =21 cm
h = 10 cm
Volume of the Cylinder is
$= \pi {r}^{2} h \\ = \frac{22}{7} \times {21}^{2} \times 10 \\ = 13860 \: {cm}^{3}$