The given sphere has a radius of r = 4 cm.
It is required to find the volume of the sphere using 3 for π.
The given volume formula is:
[tex]V=\frac{4}{3}\pi r^3[/tex]
Substitute r=4 and π=3 into the volume formula provided:
[tex]V\approx\frac{4}{3}\times3\times4^3=\frac{4}{\cancel{3}}\times\cancel{3}\times4^3=4\times64[/tex]
Evaluate the product to get:
[tex]V\approx256\operatorname{cm}^3[/tex]
The required volume is approximately 256 cm³.
