Ten inches of cake is not enough for 12 people. 10 inch cake has a diameter of 10 inch and an inch is 2.54 cm, so the diameter of 10 inch cake is 25.4 cm. Generally, a 10 inch cake is suitable for 6- 10 people. Cake is an ancient western pastry, usually made in an oven. Cake is made of eggs, sugar and wheat flour as the main raw materials. Milk, fruit juice, milk powder, fragrant powder, salad oil, water, shortening and baking powder are auxiliary materials. After stirring, concocting and baking, sponge-like snacks are made.