Question

A soup can is the shape of a cylinder. The base is a circle that has a circumference of 9.0 cm. In your pantry you line up a bunch cans. How wide must your pantry be if you want to fit 8 cans. Round to the nearest tenth.

Answer 1

22.88cm

Explanation:

The formula for the circumference (C) of a circle is the following

C =
`2\pi r`

We need to use plug in the given value for the circumference of a can and solve for r which is the radius.

9 =
`2\pi r`

9 = 6.283r

1.43 = r

Now that we have the radius we can multiply it by 2 to get the diameter of the can

1.43 * 2 = Diameter

2.86 = Diameter

Finally, we can multiply the diameter by 8 in order to calculate the total width needed to fit the 8 cans in the pantry.

2.86 * 8 = 22.88cm