A cone and a cylinder have the same radius and height. The volume of the cone is 100π (pi) cubic feet. What is the volume of the cylinder?

Respuesta :

Answer:

The volume of the cylinder is [tex]300\pi[/tex] cubic feet.

Step-by-step explanation:

From Geometry we remember that volumes of a cone and a cylinder with the same radius ([tex]R[/tex]), measured in feet, and height ([tex]h[/tex]), measured in feet, are defined by the following equations:

Cone

[tex]V_{co} = \frac{1}{3}\pi\cdot R^{2}\cdot h[/tex] (1)

Cylinder

[tex]V_{cy} = \pi\cdot R^{2}\cdot h[/tex] (2)

The ratio of the volume of the cylinder to the volume of the cone is:

[tex]\frac{V_{cy}}{V_{co}} = 3[/tex] (3)

If we know that [tex]V_{co} = 100\pi\,ft^{3}[/tex], then the volume of the cylinder is:

[tex]V_{cy} = 3\cdot V_{co}[/tex]

[tex]V_{cy} = 300\pi\,ft^{3}[/tex]

The volume of the cylinder is [tex]300\pi[/tex] cubic feet.