Question

Suppose that, from measurements in a microscope, you determine that a certain layer of graphene covers an area of 1.50μm2. Convert this to square meters.

Answer 1

1∙5µm² = ? m²
1m * 1m = 1m² But 1m = 1,000,000µm = 1x 10^6µm 1x10^6µm * 1x10^6µm = 1m² 1x 10^12µm² = 1m² (Now, try dividing both sides by 1x10^12). 1x10^12µm² /(1x10^12) = 1m² /(1x10^12) 1µm² = 0∙000 000 000 001 m² (multiply both sides by by 1∙5). 1∙5µm² = 0∙000 000 000 0015 m²

1∙5µm² = 1∙5x 10^-12 m²
I am not the best in math but hope this helps you