Question

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

Answer 1

Answer:

D

Step-by-step explanation:

Similar triangles have proportional corresponding sides. If triangles ABC and DEF are similar, then

$\dfrac{FE}{CB}=\dfrac{DE}{AB}=\dfrac{FD}{CA}.$

From the diagram,

$FE=60,\\ \\BC=5,\\ \\AB=12,$

then

$\dfrac{60}{5}=\dfrac{DE}{12}.$

This is exactly option D.