Question

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

Answer 1

Answer:

Volume of the Figure $=825.38m^3$

Step-by-step explanation:

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

Volume of a cone = $\pi *r^2*\frac{h}{3}$

Volume of the Upper Cone with  

$height=12m$

$radius=6m$

                       $3.14*6*6*\frac{12}{3}$

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

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

                            $=3.14*6*6*\frac{18}{3} \\\\=3.14*6*6*6\\\\=3.14*36*6\\\\=3.14*216\\\\=678.24m^3$

Volume of the Whole Figure =   $147.14+678.24$

Volume of the Figure  $=825.38m^3$