This is the relationship between the thickness and volume of dumpling wrapper in jiaozi model. I saw the topic in another person's place and was blocked. He said it before I found out. After deleting it, I want to answer it again. I found it missing. Please answer here.

The key to solving the problem lies in the third formula, which connects large volume with small volume, so the required mathematical quantity can be raised by replacing the mathematical quantity represented by letters in the third formula with other related quantities. The specific derivation process is shown in the attached figure. The topic is still very simple.