Micrometres.
The unit of measurement to measure the thickness of a DVD is typically expressed in millimeters.
What measure of units would you use to measure the thickness of a phone book
centimeter
It is a millimetre.
SI unit is used to measure the thickness of a glass slide is very small.it is measured in mm.
you will use cm because it is useful then the other types of measurement
An instrument called micrometer is used to measure paper or card thickness.
i think it is mm
9cmvmd
Milimeters
You would use millimeters (mm) to measure the thickness of a house key, as it is a small unit appropriate for measuring such dimensions.
Mm