Answer:
Yes they are similar. Triangle ABC is similar to Triangle FED. The scale factor from large to small is 3/4 or small to large is 4/3.
Step-by-step explanation:
To determine if two triangles are similar, their corresponding sides create equal ratios.
[tex]\frac{AB}{FE} = \frac{BC}{ED}= \frac{CA}{FD} \\\\\frac{15}{20} =\frac{12}{16} =\frac{18}{24} \\\\ \frac{3}{4} =\frac{3}{4} =\frac{3}{4}[/tex]
This ratio is the scale factor depending on which is the pre-image. 3/4 or 4/3.
