Moved From Discussion Page - Posted by Aggie Earth doesn't have a 'length.' It has a circumferance, a mass, a volume, even a length of time or age, but it doesn't have a length.
there are many instruments used to measure length depending upon the size of object , Ruler is Metric instrument used to measure length. Screw gauge is also used as an instrument used to measure length in mm.
the instrument that the used was an intelligent brain
meter stick
This instrument is called pluviometer (a rain gauge). See the link below.
A ruler is an example of an instrument that can be used to measure relatively small linear distances, though it could not measure all three at once.
the ruler The meter stick
The instrument "Metalic tap" is generally used for length measurement in India
there are many instruments used to measure length depending upon the size of object , Ruler is Metric instrument used to measure length. Screw gauge is also used as an instrument used to measure length in mm.
there are many instruments used to measure length . measuring tape is used to measure the length of room.
dendrometer
mass
A pedometer.
It is a meterstick!
Meterstick
Ruler, meter stick, yard stick
centimeter
Vernier Calipers are instruments that are used measure length. It is an instrument that provides a digit of accuracy.