Accurate linear measurement.
by dividing diameter by 2 :)
A rulerDepending on the degree of accuracy required: a ruler, vernier callipers, micrometer.
Vernier callipers are made in various sizes. The range would depend on the size. The most usual size is 0 - 150 mm
It depends on what you are trying to measure. If you are measuring the length of a car, for example, any reading obtained using vernier callipers is likely to be totally useless. The key is to select a tool that is appropriate to the task.
Because they were invented by Pierre Vernier in 1631.
To measure things, or is that just too obvious? A.K.A. Vernier Callipers
4
Pythagoras
No
yes it is 2.25
Accurate linear measurement.
vernier-caliper
by dividing diameter by 2 :)
I would use vernier callipers.
yes
0.1mm It is the range of verniercalliper. As it has least count 0.1mm that's why its range is 0.1 mm in physics laboratory