This question cannot be answered sensibly. A square centimetre is a measure of area, with dimensions [L2]. A centimetre is a measure of distance, with dimensions [L]. Basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.
A = 38.52 cm2
10000 cm2 in one m2
182.9 cms
5' 9" = 175.26 cms
10 cms in one mm
4.3 centimeters=43 millimeters
55.5 inches is 140.97 cms.
2400m2
20
10,000
400cm2
172.72 centimeters.