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

           (ii) \small 0.63\hspace{1mm}m

Answers (1)

Given,

The radius of the sphere = r = 0.63\ m

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 (0.63)^3

\\ = 4\times22\times 0.03\times 0.63\times 0.63

\\ = 1.048\ m^3

\\ = 1.05\ m^3\ \ \ (approx.)

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