Because cm is a unit of length and sqm is a unit of area, this is impossible to answer.
Here is sqcm in sqm:
1sqm = 1m*1m
1m = 100cm
1sqm = 100cm*100cm
1sqm = 10,000sqcm
200/10,000 = .02 sq m
511 cm equals 511 centimetres.
it is equivalent to 140mm
7.4 meters equals 740 cm.
4.6 centimetres equals exactly 4.6 cm.
.013 cm
10 cm
30 cm
320 cm.
50 cm
3 no of jacks
31 in = 78.74 cm