The method of folding paper box squares is as follows:

1. Prepare two pieces of A4 paper (or colored paper), a pair of scissors, a pencil and a glue.

2. First, fold one corner of the paper and draw a line along the edge of the folded corner with a pencil.

3. Cut the paper along the line of pencil drawing.

4. After you get a square piece of paper, fold the other two in half, and you will have an X-shaped crease.

5. The four corners are respectively folded to the center point of the X shape.

6. The upper and lower sides are folded in half.

7. Fold the left and right sides in half as in step 6, and you will get four everted triangles, and then cut them to the bottom of everted triangles along the broken lines with scissors.

8. Cut several other broken lines in the same way.

9. Open the left and right sides, and the upper and lower sides stand at 1/3.

1. Fold down the triangle above.

11. Fold in the lower triangle, so that the box is finished.

12. The folding method of the lid is the same, but a slightly larger paper is needed to cover the lid.

13. Cover it, so that a cubic paper box can be folded and grasped.

Related formula of cube:

Because all six faces of a regular hexahedron are equal and square, where A is the edge length of the regular hexahedron and S is the surface area of the regular hexahedron.

volume: a cube belongs to a prism, and the volume formula of a prism is also applicable, that is, volume = bottom area × height. Since all six faces of a regular hexahedron are equal and square, the volume of a regular hexahedron = edge length × edge length × edge length.