Answer:
4 inches
Step-by-step explanation:
We just have to find the cube root of 64 :)
For example if we had 8 cubes of 1 inch, you can put them together into a cube of 2 inches,
8 is the cube of 2 = 2 x 2 x2
Do you get it?
Same goes for 27 cubes of 1 inch, you get a cube of 3 inches
So for 64 cubes, we find the cube root and we get 4