2cm
19 mm is more precise than 2 cm because it is a smaller unit of measurement. There are 10 mm in 1 cm, so 19 mm is more specific than 2 cm.
2.5 cm is more precise.
19.2cm is more precise
634 mm.
19mm is more precise. 19mm = 1.9cm
Usually in cm or inches.
decimeters * * * * * Actually, 238 cm = 23.8 dm so 238 cm is more precise.
82 mm is more precise because you are missing 0.2 for 8 cm. If you want your number in cm then 8.2 cm is just as precise as 82 mm.
a mm is a tenth of a cm. This makes it a thousanth of a metre. It is a small and precise unit of measurement.
cm most likely if you want to be precise. but meters if you are making an estimate.
The difference is in the precision. 3 cm is assumed to be closer to 3 cm than to 2 or 4 cm. 3.00 cm is assumed to be closer to 3.00 cm than to 2.99 or 3.01 centimeters. Hence, the second measurement is possibly 100 times more precise.
No.