How do we find the volume of a box?
Box's Secret Number
How do we find the volume of a box?

Imagine you've got an empty cardboard box sitting on the floor, and a burning question: how much stuff can I actually fit inside? That "how much can it hold" number has a name. It's called volume, and finding it is gloriously simple once you see the trick.
Volume is just the amount of space inside something. We measure it in little cubes — tiny blocks, all the same size, like sugar cubes. The question "what's the volume?" really means "how many of these little cubes would fit inside?"
