Ten inches of cake is enough for 12 people. The diameter of 10 inch cake is 10 inch, and one inch is 2.54 cm, so the diameter of 10 inch cake is 25.4 cm. As for how many people eat it, it depends on the individual. Generally, 10 inch cake is suitable for 1 1- 15 people.

The diagonal length of 10 inch square cake is:10x2.5cm (about 2.5cm/inch) = about 25cm. The size of a square cake is diagonal, because the diagonal is the longest, and this length can be loaded into a 10 inch cake box. ）?

If it is wide, you can press the trigonometric function sin45 (square, right side, corner line and two sides form an isosceles right triangle, and the angle between diagonal and side is 45 degrees), that is, the width = 25x0.71=17.75cm.. ?

Precautions for eating cakes:

1, the cake is best eaten on the day of purchase, and the taste is not so good the next day, especially the fresh milk cake.

2, the shelf life of the cake is short, it is best to refrigerate when storing, and it is not suitable to be placed at room temperature, which is easy to breed bacteria.

3. Cake is a food with high sugar, high fat and high cholesterol, so people with diabetes, hyperlipidemia and hypertension are not recommended to eat cake.