Four.
5 significant figures.
To determine the number of significant figures in the product of the numbers (23.34 cm), (90076 cm), and (2.1223 cm), we look for the number with the least significant figures. The number 23.34 has 4 significant figures, 90076 has 5, and 2.1223 has 5. Therefore, the product will have 4 significant figures, as that is the least among the three numbers.
2 of them.
12.655 cm rounded to four significant figures is 12.66cm
All three of them are significant figures
5 significant figures.
There are 4 significant figures in this number.
There are 2 significant figures in this measurement.
4.05 has three (3) significant figures
There are 3 significant figures
None. The abbreviation cm represents one or more centimeters. In your question there are no numbers associated with the cm unit, therefore there are no significant figures.
2 of them.
1730 feet is 52,730.4 cm.
There are two significant figures in the measurement 210 cm.
12.655 cm rounded to four significant figures is 12.66cm
This has 4 significant figures, and they are 6420
It has 2 significant figures. However, the fact that it is given as 2300 mm and not as 230 cm suggests that it is, in fact significant to 4 figures.