If we dcrease the radius of each cylinder by 2m , which one has the greater volume give your answer rounded to the nearest tenth use 3.14 for pi

Respuesta :

Answer:

See Explanation

Step-by-step explanation:

Given

The question is incomplete, as the cylinders are not given.

Required

The cylinder with greater volume

To answer this question, I will assume the following dimensions.

Cylinder 1

[tex]r = 5[/tex]

[tex]h = 10[/tex]

Cylinder 2

[tex]r = 7[/tex]

[tex]h = 5[/tex]

Volume is calculated as:

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

When the radius is reduced by 2, the formula becomes

[tex]V = \pi (r - 2)^2h[/tex]

For the first cylinder, we have:

[tex]V_1 = \pi (r - 2)^2h[/tex]

[tex]V_1 = 3.14 * (5 - 2)^2 * 10[/tex]

[tex]V_1 = 3.14 * 3^2 * 10[/tex]

[tex]V_1 = 3.14 * 9 * 10\\[/tex]

[tex]V_1 = 282.6[/tex]

For the second cylinder, we have:

[tex]V_2 = \pi (r - 2)^2h[/tex]

[tex]V_2 = 3.14 * (7 - 2)^2 * 5[/tex]

[tex]V_2 = 3.14 * 5^2 * 5[/tex]

[tex]V_2 = 3.14 * 25 * 5[/tex]

[tex]V_2 = 392.5[/tex]

Cylinder 2 has a greater volume because 392.5 > 282.6

Note: Irrespective of the dimension of the cylinders, the above step works fine.