Question

The volume of a sphere is 8.6 cubic meters. Determine the radius of the sphere. Use 3.14 for π

Answer 1

r=1.27m

Explanation:

volume of sphere = 8.6 cubic metre

`4 / 3\pi \: r ^(3) = 8.6`

`4 / 3 * 3.14 * r ^(3) = 8.6`

`{r}^(3) = 8.6 * 3 / 12.56`

`{r}^(3) = 25.8 / 12.56`

`r \: = \sqrt[3]{2.054}`

`r \: = 1.27m`