Answer:
0.003.
Step-by-step explanation:
We have been given that Lacey measured a neighborhood park and made a scale drawing. The scale she used was 3 millimeters = 1 meter.
To find the scale factor, we will convert 1 meter into millimeters as:
We know that 1 meter equals 1000 millimeters.
[tex]\text{Scale factor}=\frac{\text{Drawing side}}{\text{Original side}}[/tex]
[tex]\text{Scale factor}=\frac{3}{1000}[/tex]
[tex]\text{Scale factor}=0.003[/tex]
Therefore, the scale factor of drawing is 0.003.