Convert 1.25 x 10^-8 meters wide by 2.5 x 10^-6 meters long into millimeters.

1 meter = 1000 millimeters

To convert meters to millimeters, multiply the measurement in meters by 1000.

So, to convert 1.25 x 10^-8 meters to millimeters, we multiply by 1000:

1.25 x 10^-8 meters * 1000 = 1.25 x 10^-5 millimeters

Similarly, to convert 2.5 x 10^-6 meters to millimeters, we multiply by 1000:

2.5 x 10^-6 meters * 1000 = 2.5 x 10^-3 millimeters

So, 1.25 x 10^-8 meters wide by 2.5 x 10^-6 meters long is equal to 1.25 x 10^-5 millimeters wide by 2.5 x 10^-3 millimeters long.