Cake originated in the west, and then slowly spread to China, so the size of the cake is generally inches, which refers to the diameter of the finished cake. So ask the size of the cake, 12 inch represents 29 cm, which means that the diameter of 12 inch cake is about 29 cm. By weight, 12 inch cake weighs 4 pounds. If these figures are still difficult to understand, then if 12 inch cake is enough for 8- 15 people, everyone will understand.

"Inch" is a traditional unit of length in China, which is expressed in decimal system by "ruler" and "ruler" (10 inch = 1 ruler,1ruler = 1 ruler). In Korea, it is used to indicate the number of relatives, for example, 1 inch indicates the relationship between two generations of lineal people. The laws of Hong Kong follow the ancient system (1 inch = 3.33cm), but this unit in Hong Kong hardly uses it, and only uses "inch" (1 inch = 2.54cm) and "centimeter". "inch" usually means "inch"