How long is 2 cm?

How long is 2 cm? 2 cm is equivalent to the diameter of 1/4.

The diameter of a fifty-cent coin is 2.05cm, and the extra 0.5mm is very small. If the requirements are not very precise, it can be approximately considered that the diameter of a pentagonal coin is 2 cm.

Introduction to centimeter centimeter is the unit of length measurement, which is equal to one hundredth of one meter. The unit of length, abbreviated as cm. ， 1cm = 1/ 100m。 1cm (cm) = 10mm (mm) =0. 1dm (decimeter) =0.0 1m (meter). The purpose of cm is to use items in centimeters: chopsticks are 25 centimeters long; The distance between desks is 80 cm; Glass height 15cm. There are also the width of the eraser, the length of peanuts, the length of pens, the diameter of coins and so on. Can be used as a unit of length and height. For example, someone's height 156 cm and desk length 120 cm. The definition of long is "long". Modern Chinese standardizes the first-class characters (commonly used characters), and the pronunciation of Putonghua is cháng and zh m ǐ ng, which was first seen in Oracle Bone Inscriptions in zhǐng era and belonged to pictographs in Liu Shu. The basic meaning of "long" is the distance between two ends, such as length; The extended meaning is long, as opposed to short, which refers to space and time, such as length and sky. In daily use, "long" is also often used as a noun to express strengths, such as learning from each other's strengths.