Question

I need help find the volume of the composite solid use 3.14 for pi

Answer 1

`222.312\:\mathrm{in^3}`

Explanation:

The composite solid consists of a cylinder and a cone. Therefore, its total volume will be the sum of the volumes of the cylinder and cone:

Volume of the cone:
`(1)/(3)\cdot 2^2\cdot 3.14\cdot 8.1 =33.912`

Volume of the cylinder:
`2^2\cdot 3.14 \cdot 15=188.4`

Thus, the total volume of the solid is:

`33.912+188.4=\boxed{222.312\:\mathrm{in^3}}`