a yard stick
I would go with millimetres
METERS!!!The unit of measurement you would use to measure the width of your classroom is meters.
Meters or feet are commonly used to measure the width of a house.
Parsecs
Centimetre.
a ruler
Millimetres
You could use either inches or centimeters to measure the width of a sheet of paper.
I would suggest centimeters but lots of people use inches.
To measure your house accurately, use a tape measure to measure the length and width of each room. Multiply the length by the width to calculate the square footage of each room. Add up the square footage of all rooms to get the total square footage of your house.
15 m
ruler