Question

Layla wants to build a wooden box with the volume of 45cubic centimeter. She started with a width of 3cm and a height of 3cm . How long should Layla make the box?

Answer 1

The volume of the box is length*width*height

So length*3cm*3cm=45cm³

Let
`l=` the length of the box

We have

`l*3*3=45`
⇒
`9l=45`
⇒
`l=5`

So the length should be 5 cm.

Answer 2

The answer should be 5 cm