3 significant figures.
There are four significant figures in the measurement 612.3 meters.
If you mean "How many significant figures are there in 314.721 meters then the answer is 6.
There are 2 significant figures in this measurement.
10800 meters has 3 significant figures.
There are 2 significant figures in this number.
3
0.01223 contains 4 significant figures1.01 contains 3 significant figures
4 significant figures
4.0600 contains 5 significant figures.
5 of them.
4
Four significant figures. Review you rules for significant figures. Some chemistry teachers, especially at the college level, are very concerned with significant figures.