Metres.
The meter.
Liters! Hope i helpedd!
kilograms
cups
what is the most suitable unit to measure the length of a car key
kilometers
appropriate unit to measure the width of a textbook = ce ntimeters
The answer depends on what you wish to measure: its length (or width or height), its mass, it fuel efficiency, it maximum speed, its maximum acceleration, its tightest turning circle, its power output, its drag, etc.
length would be about 1dm, but dms are not used. centimetres would be more mainstream to use
foot is the most precise way to measure any unit
Microgram or Milligram
The standard unit to measure mass is kilograms.
Kilometres. Except that many Americans would probably not understand those units.
The most suitable units to measure the height of a person are, feet and inches.
The most best unit to measure the length of a slice of pizza are inches.
feet
Centimetre.