Well, honey, let me break it down for you. 19mm is more precise than 2cm because 19mm is equivalent to 1.9cm. So, if you want to be all fancy and accurate, go with 19mm. But hey, if you're feeling lazy and just want to round up, then 2cm will do the trick.
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Neither is necessarily more precise; something could be exactly 19mm or exactly 2cm. However it can definitely be said that measuring to the nearest mm is more precise than measuring to the nearest cm. This is because a mm is smaller and so if any rounding is involved (to the nearest mm or cm) then the rounding is less of a distance and the error in absolute precision is therefore less.
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.
The cost of a 2cm garnet can vary depending on the quality, color, clarity, and origin of the stone. On average, a 2cm garnet can range from $20 to $100 per carat, but prices can go higher for more rare or high-quality stones.
To convert 19mm to centimeters, you divide by 10 since there are 10 millimeters in 1 centimeter. Therefore, 19mm is equal to 1.9 centimeters.
612 m is more precise.
Divide it by 25.4