Given:
The diameter of a sphere is 19 cm.
To find:
The volume of the sphere.
Solution:
We have,
[tex]Diameter=19\text{ cm}[/tex]
[tex]Radius=\dfrac{19}{2}\text{ cm}[/tex]
The volume of the sphere is
[tex]V=\dfrac{4}{3}\pi r^2[/tex]
where, r is radius.
Putting [tex]\pi=\dfrac{22}{7}, r=\dfrac{19}{2}[/tex] in the above formula.
[tex]V=\dfrac{4}{3}\times \dfrac{22}{7}\times (\dfrac{19}{2})^3[/tex]
[tex]V=\dfrac{4}{3}\times \dfrac{22}{7}\times \dfrac{19}{2}\times \dfrac{19}{2}\times \dfrac{19}{2}[/tex]
[tex]V=\dfrac{75449}{21}[/tex]
[tex]V=3592.80952[/tex]
[tex]V\approx 3592.8[/tex]
Therefore, the volume of the sphere is 3592.8 sq. cm.
