mm
The metric unit used for measuring the width of a fingernail is usually millimeters (mm).
Metres, to measure its length or width, square metres to measure its area.
To measure the width of a stamp, you would typically use millimeters (mm) as the metric unit. Stamps are generally small, and millimeters provide a more precise measurement than centimeters or meters. For example, a standard postage stamp might measure around 25 mm in width.
You would use the metric unit "liters" to measure the capacity of a hot water tank.
Meters or feet are commonly used to measure the width of a house.
centimetre
Kilometres
The metric unit used for measuring the width of a fingernail is usually millimeters (mm).
Metres, to measure its length or width, square metres to measure its area.
I would go with millimetres
To measure the width of a stamp, you would typically use millimeters (mm) as the metric unit. Stamps are generally small, and millimeters provide a more precise measurement than centimeters or meters. For example, a standard postage stamp might measure around 25 mm in width.
the metric system
The metric unit of the meter would be the appropriate measure of the area of classroom. Calculating area involves multiplying the length (in meters) of the classroom's length and width. Area of the classroom would be in square (^2) meters.
Yards if you work in imperial units or metres if you work in metric units
You would use the metric unit "liters" to measure the capacity of a hot water tank.
Meters or feet are commonly used to measure the width of a house.
Millimetres (or centimetres to one decimal place).