The volume of cone A is equal to the volume of cylinder B. Cone A also has the same radius as cylinder B. What is the ratio of the height of cone A to the height of cylinder B?

Respuesta :

Volume of cone is (1/3)*pi*r^2*h. Volume of cylinder is pi*r^2*h. Thus ratio of heights is 3:1.

Answer: 3 : 1

Step-by-step explanation:

The formula for finding the volume of a cone is given by :

[tex]V = \frac{1}{3}\pi r^{2}h[/tex]

While the formula for calculating the volume of a cylinder is given by :

[tex]V = \pi r^{2}h[/tex]

Since the two volumes are equal according to the question , then we have :

[tex]\frac{1}{3}\pi r^{2}h = \pi r^{2}h[/tex]

Also , since they have the same radius and [tex]\pi[/tex] is common to the two , we will be left with :

[tex]\frac{1}{3}h_{a}[/tex] = [tex]h_{b}[/tex]

That is

[tex]h_{a} = 3h_{b}[/tex]

Therefore , the ratio of the height of cone A to the height of cylinder B = 3 : 1