centimeters
Centimeters
Centimetres, millimetres or inches
Centimeters
Millimeters.
kilometers
A micrometre would be appropriate.
The length of a pencil. your waist/chest measurement the dimensions of a table
Centimetres, millimetres or inches would be most appropriate for measuring the length of a ruler.
you would probably use a micrometer
usually it would be given in miles or kilometers
Meter.... or more likely millimeters