Inches if you are in the US, centimeters or millimeters everywhere else.
A metre.
miles or kilomiters
Centimeters.
centimeters
yards
sorry i press the wrong words the anwer is gram * * * * * A gram is a measure of mass, not of length! I would use a centimetre.
You would use inches or centimeters to measure the length and width of a skateboard.
A metre.
always the meter to measure length. This is an SI (international) unit of measurment, and is the standard international unit of measurment for length.
Inches
cm
The ISO length unit to use would be the cementer.
I would use feet
You would use meters.
a cm
You would use the SI unit meter (m) to measure the length of a DVD case.
miles or kilomiters