What is the edge of a cube that can be folded from 64 cubes whose edges are 1 cm.

1. The area of a cube is equal to the side of a cube squared. That is, if we take the side of the cube as “a”, and denote the area by S, then S = a ^ 2.
2. The area of one small cube is equal: S = 1 ^ 2 = 1 (cm ^ 2).
3. From the previous paragraph, it follows that the area of 64 such small cubes is equal to: S = 1 * 64 = 64 (cm ^ 2).
4. Thus, the area of the cube should be equal to 64 (cm ^ 2).
5. Find the side of the cube based on the knowledge of the area. Let’s make a simple linear equation.
64 = a ^ 2
a = 8
Answer: the side of the cube is 8 cm.