Question

find the volume of sphere whose radius is 7cm ii) 0.63

Answer 1

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Here is your answer

As we know that,

Volume of sphere
$= \frac{4}{3} \pi {r}^{3}$
So,
(i) Radius = 7 cm

$= \frac{4 \times 22 \times 7 \times 7 \times 7}{3 \times 7} \\ \\ = \frac{4312}{3} \\ \\ = 1437.33 \: {cm}^{2}$

(ii) Radius = 0.63

$= \frac{4 \times 22 \times 63 \times 63 \times 63}{3 \times 7 \times 100 \times 100 \times 100} \\ \\ = 1.047816 \: {cm}^{2}$

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