millimeters
Yard
An instrument called micrometer is used to measure paper or card thickness.
To measure the thickness of a thin piece of wire we have got the instrument called the wire gauge. The thickness of a thin piece of wire is measured in mm.
In units of measure(:
one page of a phonebook is measured in mm. unit thickness of a phone book is cm
millimeters
what unit of measure is thickness og a ballpen
cortical thickness is a brain morphometric measure used to describe the combined thickness of the layers of the cerebral cortex in mammalian brains,
Milimeters
swagg
meter
you will use cm because it is useful then the other types of measurement
micometer screw gauge
Coins are measured in millimetres.
What is the most appropriate instrument to measure
You find a tape measure and take the measurement across the door, then the length of it, then if necessary the thickness.
Millimetres, as in 1.5 mm. You could use a micrometer to measure thickness of a coin.