it depends what kind of ruler
no offence but i think that this is a stupid question
How much a bicycle what? Weighs, cost, take up space?
We can measure how long things are , how tall,or how far apaart they are .Those are examples of length meaasurements. The basic unit of length is meters.
By unit of length and distance and conversion ,we can say that the SI unit of length is km .
The basic metric unit for length is the metre. Rivers would be measure in kilometres (1,000s of metres)
A "length" is not a standard unit of measure.
The best unit to measure the length of a science table would typically be meters or centimeters, depending on the table's size. For larger tables, meters provide a convenient measurement, while centimeters offer more precision for smaller dimensions. If the table length is in the range of typical household furniture, centimeters would be the most practical choice. For example, a standard science table might measure around 120 cm in length.
A metres, for an approximate measure, a centimetre for a more accurate measure.
The most best unit to measure the length of a slice of pizza are inches.
millimetres
Metres.
It is a millimetre.
Metres.
The best unit for measuring the length of a pencil is inches.
feet The meter (m) is the international unit (in SI) for length.
The most common unit of measurements are mm,m,cm ,km.The best unit of length to measure the length of marker is done in cm ( centimeters).
Meter
inches or centimeters