6.5 Volume of Spheres

With spheres, we still need the radius; in this case, it's 8.

However, instead of squaring it like we are used to in the past, we actually cube it (8^3)

Next we can still multiply it times pi.

And then our last step is to multiply all of that by 4/3...so it will look something like this

 $V=\frac{4}{3}\pi r^3$  

 $V=\frac{4}{3}\pi\left(8\right)^3\rightarrow2144.7$  

Do we have the radius? (Or do we have the diameter, but we can find the radius from that?)

Plug this radius into our formula

Try this on your own before clicking to see the answer

 $V=38792.4$