The sizes of 6-inch and 8-inch cakes are 6x2.54= 15.24cm, and 8x2.54=20.32cm respectively. Note: One inch is one inch, which is equal to 2.54cm. The picture is as follows:

1 inch =2.54 cm. 6-inch is 6 times 2.54 cm, and 8-inch is 8 times 2.54.

1mil= 1/ 1000inch=0.00254cm=0.0254mm

1inch= 1000mil=2.54cm=25.4mm

In the British system, 12 inch (inch) is 1 foot (foot) and 36 inch is 1 yard.

Extended data

The origin of the cake:

Europeans in the Middle Ages believed that birthdays were the day when the soul was most easily invaded by demons, so on birthdays, relatives and friends would gather around to give blessings and send cakes to bring good luck to drive away demons. Up to now, both adults and children can buy a beautiful cake on their birthdays and enjoy the blessings given by everyone.

Because of their love for children, when the ancient Greeks celebrated their children's birthdays, they put many small lighted candles on the cakes and added a new activity-blowing out these lighted candles. They believe that lighted candles have mysterious power. If the birthday child makes a wish in his heart at this moment and then blows out all the candles in one breath, then the child's good wish will surely come true.

The early economic and trade routes imported exotic spices from the Far East to the north, nuts, toilet water, citrus fruits, dates and figs from the Middle East, and sugar cane from eastern and southern countries.