Because they were invented by Pierre Vernier in 1631.
4
Pythagoras
No
yes it is 2.25
Accurate linear measurement.
vernier-caliper
by dividing diameter by 2 :)
I would use vernier callipers.
yes
Least Count [L.C]:-Least count is minimuim acuurate value meauserd by instrument.Least Count of Vernier Callipers:-The minimum value measured is 0.1mm but nowa days [l.c] is of 0.5mm.'
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
To measure things, or is that just too obvious? A.K.A. Vernier Callipers