Question

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

Answer 1

D

Explanation:

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

`(FE)/(CB)=(DE)/(AB)=(FD)/(CA).`

From the diagram,

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

then

`(60)/(5)=(DE)/(12).`

This is exactly option D.