Question

Find the volume of the composite solid. Round your answer to the nearest tenth.​

Answer 1

Volume of the Figure
`=825.38m^3`

Explanation:

Volume of the figure = Volume of the Upper cone+Volume of the lower cone

Volume of a cone =
`\pi *r^2*(h)/(3)`

Volume of the Upper Cone with

`height=12m`

`radius=6m`

`3.14*6*6*(12)/(3)`

`=3.14*6*6*4\\\\=3.14*36*4\\\\=3.14*144\\\\=147.14m^3`

Volume of the Lower cone with
`radius=6m` and
`height=18m`

`=3.14*6*6*(18)/(3) \\\\=3.14*6*6*6\\\\=3.14*36*6\\\\=3.14*216\\\\=678.24m^3`

Volume of the Whole Figure =
`147.14+678.24`

Volume of the Figure
`=825.38m^3`