Question

What is the volume of a sphere with a radius of 2.9 m, rounded to the nearest tenth ofa cubic meter?

Answer 1

We are to calculate the volume of a sphere of radius 2.9m

Volume of sphere is given as

`V\text{ = }(4)/(3)\pi r^3`

substituting the value of r

`\begin{gathered} V\text{ = }(4)/(3)\text{ }*(22)/(7)*(2.9)^3 \\ V\text{ = }(88)/(21)*24.389m^3 \\ V\text{ =}(2146.232)/(21)m^3 \\ V\text{ = 102.202}m^3 \\ V=102.2m^3\text{ (to the nearest tenth)} \end{gathered}`

Therefore,

The volume of the sphere is 102.2 cubic meter