Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area of 1.50μm2. convert this to square meters.
express your answer in square meters.

Create your conversion factors.

You know that 1 micrometer = 1/1000000 m

Then,

[1 micrometer]^2 =[1/1000000 m]^2 =>

=> 1 = [1000000]^2 micrometer^2 / m^2

Now multiply the given area times your conversion factor:

1.50 (micrometer)^2 * [1/1000000]^2  micrometer^2 / m^2 = 1.50*10^(-12) m^2

1.50*10^(-12) m^2