For this case we have that by definition, the volume of a cylinder is given by:

Where:
V: It's the volume
A: It is the radius of the cylinder
h: It is the height of the cylinder
We have to:

On the other hand, the volume of the cone is given by:

V: It's the volume
A: It is the cone radius
h: It is the height of the cone
We have:

Thus, the total volume is given by:

If we round up we have:

Answer:
