Answer:
Step-by-step explanation:
As all are similar polygons , corresponding sides will be in proportion.
[tex]1)\frac{9}{12} =\frac{3}{4}\\\\[/tex]
Scale factor = 3 : 4
[tex]2)\frac{12}{15}=\frac{4}{5}\\\\[/tex]
Scale factor = 4 : 5
[tex]3) \frac{10}{25}=\frac{2}{5}\\[/tex]
Scale factor = 2:5
4)
[tex]\frac{8}{16}=\frac{1}{2}[/tex]
Scale factor = 1 : 2
