Answer:
The approximate volume of glass is equal to [tex]1,620.24\ cm^{3}[/tex]
Step-by-step explanation:
we know that
The volume of the sphere ( crystal ball) is equal to
[tex]V=\frac{4}{3}\pi r^{3}[/tex]
the approximate volume of glass is equal to
[tex]V=\frac{4}{3}\pi (rb^{3}-ra^{3})[/tex]
[tex]rb=8\ cm[/tex]
[tex]ra=(8-3)=5\ cm[/tex]
substitute
[tex]V=\frac{4}{3}(3.14)(8^{3}-5^{3})=1,620.24\ cm^{3}[/tex]
