What are the 10 centimeter reference objects in daily life?

Ten centimeter objects are: fountain pens, compasses , triangular rulers, small drawing books, fruit knives, cell phones and so on. The length of 10 centimeters is equivalent to the length of the diagonal of a bank card, and the design of a bank card specifies that the diagonal of the card is 10 centimeters long.

The diameter of a $1 coin is 2.5 centimeters. Putting four $1 coins side by side is 10 centimeters.

And the diameter of a 50-cent coin is 2 centimeters, and placing five 50-cent coins side by side is also 10 centimeters.?

The width of the fingernail of a human thumb is about 1 centimeter, and ten fingers side by side is ten centimeters.

The 10-centimeter length is equivalent to the diagonal length of a bank card, and the design of a bank card specifies that the diagonal of a bank card is 10 centimeters long.?

China's traditional units of length:

China's traditional units of length are the mile, the zhang, the foot, and so on.

1 mile = 150 zhang = 500 meters.

2 li = 1 kilometer (1000 meters).

1 zhang = 10 feet.

1 zhang = 3.33 meters.

1 foot = 3.33 decimeters.

International Standard Units of Length: In the International System of Units (SIU), the standard unit of length is the "meter", which is represented by the symbol "m". These units of length are metric units.