Ghép 3 miếng giống nhau thành khối lập phương

Hello everyone, in this video I will show you how to build a toy. Our goal is to have 3 pieces of the same size. As you can see here. And we will put these 3 pieces together to form a square. Like this. This is a red square. And we will put these 3 pieces together to form a green square. If you have these 3 pieces, you don't need to watch the next part of this video. Now I will give you some advice. When you try to put these 3 pieces together, I see that players usually have a lot of difficulties. You can put each piece together, but it is difficult to put all 3 pieces together. For example, we can put these 3 pieces together. Like this. Similarly, we can put these 3 pieces together. However, it is difficult to put all 3 pieces together. So the secret is that we have to put 3 pieces together at the same time. Like this.