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cm
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
about the width of your thumb twice If you are an adult, I would estimate more like the width of your little finger twice. 2 cm, or 20 mm, is approximately 4/5 of one inch.
ruler
meters
I would suggest centimeters but lots of people use inches.
cm
By unit of length and distance and conversion ,we can say that the most appropriate unit to measure the length of a finger is cm.
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
about the width of your thumb twice If you are an adult, I would estimate more like the width of your little finger twice. 2 cm, or 20 mm, is approximately 4/5 of one inch.
Half the width of your finger.
Centimetre.
Parsecs
a ruler
Millimetres
Identify the SI until you would use the measured the width of your classroom
You would need to measure the finger for ring size.