Metres, to measure its length or width, square metres to measure its area.
metric unit
miles?
Millimeters
The metric unit of length is the 'meter'.
Kilograms
metric unit
Yards if you work in imperial units or metres if you work in metric units
kilograms
A microgram.
meters
Litres.
Tonnes
miles?
Millimeters
The metric unit of length is the 'meter'.
You would use meters.
I would use centimetres.