6 of them because although the last 0 is included it is not counted as a significant figure.
4 significant figures.
4 significant figures.
How many significant figures are in the measurement 210 cm?
How many significant figures are in 20.8
2 significant figures.
There are four significant figures in 0.1111.
Three significant figures.
4 significant figures.
3 significant figures
4 significant figures.
6 significant figures.