Answer:
Option (1).
Step-by-step explanation:
In the figure attached, original parallelogram(in red) has been reduced by a scale factor 'k' forming a new parallelogram (in blue).
We know scale factor is the ratio of one side of the image (dilated figure) and the corresponding side of the original figure,
Scale factor = [tex]\frac{\text{Side of the dilated image(small)}}{\text{Side of the original(Large)}}[/tex]
k = [tex]\frac{3}{18}[/tex]
k = [tex]\frac{1}{6}[/tex]
Therefore, scale factor will be [tex]\frac{1}{6}[/tex].
Option (1) will be the answer.
