Question

What additional piece of information must be known in order to calculate the volume of the cylinder below?

1. the diameter of a base

2. the height of the cylinder

3.the area of a base

4.the radius of a base

Answer 1

The correct answer is -

2. the height of the cylinder

Explanation:

The volume of the cylinder is given as :

`V= \pi r^(2) h`

In the given figure, we have the radius. So, we need the height in order to calculate the volume.

So, the correct answer is -

2. the height of the cylinder

Answer 2

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

`V = \pi * r ^ 2 * h`

Where:

r: It is the radius of the cylinder

h: It is the height of the cylinder

We have as data, observing the figure, that they give us the radio. Then, the height is missing.

Answer:

Option B