triangles ABC and DEF are similar which proportion could be used to determine the length of side DE

Answer:
D
Step-by-step explanation:
Similar triangles have proportional corresponding sides. If triangles ABC and DEF are similar, then
[tex]\dfrac{FE}{CB}=\dfrac{DE}{AB}=\dfrac{FD}{CA}.[/tex]
From the diagram,
[tex]FE=60,\\ \\BC=5,\\ \\AB=12,[/tex]
then
[tex]\dfrac{60}{5}=\dfrac{DE}{12}.[/tex]
This is exactly option D.