You could use meters or feet.
Answer: meters
meters
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
millimetres.
Inches or centimeters, depending on where you live.
You could use feet or metres.
The unit of measurement "inches" originated from the ancient Romans, who used the width of a thumb as a standard measurement.
nanometer
It is any linear unit you want to use, depending on the magnitude of the width and on your particular requirements.
Depending on your countries standard unit of measurement but either feet or meters would be the answer.
Inch, centimeter, or millimeter.
volume= length times width times hight.