The question, as stated, cannot be answered sensibly. A square metre is a measure of area, with dimensions [L2]. The information given is for a 3-dimensional object. The two are measures of different things and you cannot convert between measures with different dimensions such as these without additional information.
12 square mtrs
convert square mtrs to lineal mtrs
1.778 mtrs.
100.838 mtrs
2.3 mtrs
800cm = 8 mtrs
74.10 cents
4.65 mtrs
You can't convert that.
430 cm = 4.3 mtrs
360 inches = 9.144 metres
6 metres = 0.006 kilometres.