From the figure, the radius of the sphere is:
[tex]r=1\text{ in}[/tex]
The volume of the sphere is given by the formula:
[tex]V=\frac{4}{3}\pi r³[/tex]
Using the value of the radius:
[tex]\begin{gathered} V=\frac{4}{3}\pi(1)³ \\ \\ \therefore V=\frac{4\pi}{3}\text{ in^^b3} \end{gathered}[/tex]
Approximating to the nearest cubic inch:
[tex]\therefore V\approx4\text{ in^^b3}[/tex]
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