Question

find the volume of a sphere with a radius of 2 feet. express the answer in terms of pie and then round the answer to the nearest whole number.

Answer 1

Volume of a sphere is given by:\[\Large\bf\sf V\quad=\quad \frac{4}{3}\pi \color{royalblue}{r}^3\]
So let's plug our given value into the expression:\[\Large\bf\sf V\quad=\quad \frac{4}{3}\pi \left(\color{royalblue}{2ft}\right)^3\]

Answer 2

Then we'll need to simplify.

Answer 3

Apply the cube to each term in the brackets (cube the units also).

Answer 4

\[\Large\bf\sf V\quad=\quad \frac{4}{3}\pi\cdot2^3ft^3\]

Answer 5

Do you understand how to simplify it from there?

Answer 6

can you solve it