The carpenter's task
Step 1: Imagine that you are a carpenter, who is facing the task of sealing a hole in the floor.
Step 2: But the problem is that the hole in the floor is 120 * 20 cm (each cell = 10 cm), and you only have one sheet of wood plate - 80 * 30 cm.
Step 3: You must seal the hole by making the smallest possible number of cuts.
Step 4: Do you want to learn how to do this? Then look further!
Step 5: Here's how to cut the slab sheet.
Step 6: Next, add the parts as follows.
Step 7: That's it - the hole in the floor is successfully sealed! But we did only one cut!