Question

I want to know the volume of the largest cube she could build with them.

Answer 1

All of the sides of a cube are equal, then, the volume is given by the cube of the length of any side.

We need to find the biggest cubic value smaller than 80.

`\begin{gathered} 3*3*3=27 \\ 4*4*4=64 \\ 5*5*5=125 \end{gathered}`

The largest cube has volume 64 cubic units, and the sides are 4 units long.