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Find the volume of a sphere whose diameter is $14\ cm$.
Given:
The diameter of a sphere is $14\ cm$.
To do:
We have to find the volume of the sphere.
Solution:
Diameter of the sphere $= 14\ cm$
This implies,
Radius of the sphere $(r)=\frac{14}{2}$
$=7 \mathrm{~cm}$
Therefore,
Volume of the sphere $=\frac{4}{3} \pi r^{3}$
$=\frac{4}{3} \times \frac{22}{7} \times 7 \times 7 \times 7$
$=\frac{4312}{3}$
$=1437.33 \mathrm{~cm}^{3}$
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