Respuesta :

6375 [tex] \pi [/tex] ft^3

Answer: [tex]51\pi\ ft^3[/tex]

Step-by-step explanation:

From the given figure ,

Dimensions of cone : Height = 5 ft

Radius = 3 ft

The volume of cone is given by :

[tex]V=\dfrac{1}{3}\pi r^2\ h[/tex], where r is the radius and h is height  of the cone .

[tex]\Rightarrow V=\dfrac{1}{3}\pi (3)^2(5)=15\pi\ ft^3[/tex]

Dimensions of cylinder : Height = 4 ft

Radius = 3 ft

The volume of cylinder is given by :

[tex]V=\pi r^2\ h[/tex], where r is the radius and h is height  of the cone .[tex]\Rightarrow V=\pi (3)^2(4)=36\pi\ ft^3[/tex]

Now, the total volume of the figure: [tex]15\pi+36\pi=51\pi\ ft^3[/tex]