A sphere has a radius of $9.21\text{cm}$. What is its volume? (Use $\pi =3.14$)

The formula for the volume of a sphere is given by:
$$V=\frac{4}{3}\pi r^3$$

Given:

* Radius ($r$) = $9.21\text{cm}$
* $\pi =3.14$

Substitute values into the formula:

$$V=\frac{4}{3}\times 3.14\times (9.21{)}^3$$

First, compute $(9.21{)}^3$:

$$(9.21{)}^3=9.21\times 9.21\times 9.21\approx 781.2172$$

Now complete multiplication step:

$$V\approx \frac{4}{3}\times 3.14\times 781.2172$$

$$V\approx \frac{4}{3}\times 2453.022$$

$$V\approx 1.33333\times 2453.022\approx 3270.75{\text{cm}}^3$$