I'd use inches, but centimeters could also work.
meters
The width of a pin would typically be measured in millimeters (mm).
I would use meters.
Metres, to measure its length or width, square metres to measure its area.
You can measure the width of a park in meters or feet.
Centimetre.
Parsecs
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
ruler
You would use either inches or centimeters.
meters
meters
Centimeter
appropriate unit to measure the width of a textbook = ce ntimeters
Millimetre.
Identify the SI until you would use the measured the width of your classroom
Millimetres, centimetres or inches