No: 0.0451 has exactly 3 significant figures.
38 cm
C 0.0451 has exactly 2 significant figures, as leading zeros are not considered significant and trailing zeros after the decimal point are significant.
3. But it is also not exactly wrong to say that there are 2 significant figures.
4,500 has two significant figures.
2 significant figures
There are two significant figures in 0.025.
Exactly what you typed. 144.78 rounded to 2 decimal places is 144.78. You may mean significant figures, in which case it would be 1.4*10^3 (2 significant figures).
there are 2 significant figures in 21000 2 & 1 are the significant figures.
2 significant figures.
There are 2 significant figures.
There are 4 significant figures in 0.0032. Seems to be only 2 significant figures in this number.
2 significant figures.