How to convert 8kg/m^2 into g/cm^2

Question

Are you able to include working please, we know the answer is 0.8 but can't exactly work it out, 

kind regards 

Answer 1

Use the conversion ratios 1000g/1kg and 1m/100cm

 

Since 1m = 100cm, then 1m^2 = 10,000cm^2 (square both sides)

 

Multiply by the conversion ratios so that the units will cancel and you will be left with g/cm^2

 

8kg/m^2 x 1000g/1kg x 1m^2/10,000cm^2 = 0.8g/cm^2