Q : 1    Find the volume of a sphere whose radius is

            (i) 7 cm

Answers (1)

Given,

The radius of the sphere = r = 7\ cm

We know, Volume of a sphere = \frac{4}{3}\pi r^3

The required volume of the sphere = \frac{4}{3}\times\frac{22}{7}\times (7)^3

\\ = \frac{4}{3}\times22\times 7\times 7

\\ = \frac{4312}{3}

\\ = 1437\frac{1}{3}\ cm^3

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