Lost two faces.
After removing three small cubes, we will lose two faces-one above and one below.
Get four new faces
Every time we remove a small cube, we will get four new faces unexpectedly!
Simple mathematical calculation
Through simple mathematical calculation, the final surface area can be obtained as 64cm? .
Geometric variation
Pick up your building blocks or mahjong tiles, place them with your own hands and see this magical geometric change! The geometric world is always full of surprises and mysteries!