inches
Pencil lead is very narrow. Millimeter can be used to measure it.
A caliper would be the best tool for measuring the width of a pencil lead. It is precise and allows you to measure small dimensions accurately.
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
Centimetre.
Parsecs
you would use a ruler to measure a computer screen.
The length and width would be equal to 22^2 = length^2 + width^2 444 = length^2 + width^2 Assuming the screen is a square, then 444 = 2length^2 222 = length^2 root(222) = length = width
Millimetres
a ruler
Identify the SI until you would use the measured the width of your classroom
You could use either inches or centimeters to measure the width of a sheet of paper.
15 m