Answer:
1/6 is the scale factor
Explanation:
If two figures are similar, then we can relate different characteristics of the figure by using the scale factor. The scale factor is a measure of proportion with the original figure.
Obviously only similar figures can be compared using a scale factor. We know that similar figures are proportional and constant of proportionality of different dimensions in linear form such as length, height, width, perimeter etc is called scale factor.
If scale factor >1 then there is dilation of enlargement otherwise shrink
Here drawing is having dimensions as 9x7 instead of original 54x42
Proportion is the same as 1/6
So scale factor = 1/6