Question

18699Find the volume of this object.Use 3 for TT.Volume of a CylinderV= πr²hVolume of a Cone15cmV= πr²h314cm

Answer 1

Step 1

The shape is made up of a cylinder and a cone

`\begin{gathered} V=\pi r^2h---volume\text{ of cylinder} \\ V=(\pi r^2h)/(3)--\text{ volume of cone} \\ \pi=3 \\ r=3cm \end{gathered}`

Step 2

Find the volume of the cylinder

`V_1=3*3^2*14`
`V_1=378cm^3`

Find the area of the cone

`V_2=(3*3^2*5)/(3)=45cm^3`

The volume of the object will be;

`V=45+378=423cm^3`