Question

EASY !! Pls Answer!! I’ll mark you as the brainiest!!

Answer 1

Given:

The diameter of a sphere is 19 cm.

To find:

The volume of the sphere.

Solution:

We have,

$Diameter=19\text{ cm}$

$Radius=\dfrac{19}{2}\text{ cm}$

The volume of the sphere is

$V=\dfrac{4}{3}\pi r^2$

where, r is radius.

Putting $\pi=\dfrac{22}{7}, r=\dfrac{19}{2}$ in the above formula.

$V=\dfrac{4}{3}\times \dfrac{22}{7}\times (\dfrac{19}{2})^3$

$V=\dfrac{4}{3}\times \dfrac{22}{7}\times \dfrac{19}{2}\times \dfrac{19}{2}\times \dfrac{19}{2}$

$V=\dfrac{75449}{21}$

$V=3592.80952$

$V\approx 3592.8$

Therefore, the volume of the sphere is 3592.8 sq. cm.