Question

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

Answer 1

Step-by-step explanation:

$surface \: area = 4\pi {r}^{2} \\ = 4 \times \frac{22}{7} \times 42 \times 42 \\ = 22176 {cm}^{2} \\ \\ volume = \frac{4}{3} \pi {r}^{2} \\ = \frac{4}{3} \times \frac{22}{7} \times 42 \times 42 \\ = 7392 {cm}^{3}$

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Answer 2

Surface area = 4πr^2

4×22/7×42×42

51744cm^2

volume = 4/3πr^3

4/3×22/7×42×42×42

7392cm^3