Question

Find the volume and surface area of a sphere of radius 42 cm​

Answer 1

Step-by-step explanation:

radius. = 42 cm

volume of sphere

$= \frac{4}{3} \pi {r}^{3} \\ = \frac{4}{3} \times \frac{22}{7} \times 42 \times 42 \times 42 \\ = 310464 {cm}^{3}$

surface area of a sphere

$= 4\pi {r}^{2} \\ = 4 \times \frac{22}{7} \times 42 \times 42 \\ = 22176 {cm}^{2}$