Question

Mary wants to fill in a cylinder vase. At the flower store, they told her that the vase should be filled for the flowers to last the longest. Her cylinder vase has a radius of 2 in and a height of 9 in. How much water should Mary pour into the vase?

Answer 1

About 113 in³.

Explanation:

We need to find the volume of the vase.

The vase is a cylinder.

Volume of a cylinder is:
`V=\pi r^2h`

We are given the height of 9 in and the radius of 2 in.

Using 3.14 for pi:

`3.14*2^2*9\\\\2^2=4\\\\3.14*4*9\\\\12.56*9\\\\\boxed{113.04}`

Mary should pour about 113 cubic inches into the vase.

Answer 2

1.85 liters

Explanation:

The formula of the volume of a cylinder is:

`\pi r^2h`

`\pi * 2^2 * 9`

`\pi * 4 * 9`

`36\pi`

`=113.097336`

To get in liters, divide the volume value by 61.024.

`113.10/61.024`

113.10 inches^3 is equal to 1.8533769 liters.