Question

In which pair of triangles is Triangle EFG=Triangle RTS?

Answer 1

The last picture or

The picture with 3 lines on EF and TR, 1 line one EG, 1 line on SR, 2 lines on ST and 2 lines on GF

Explanation:

Since EF and RT have 3 lines and FG and TS have 2 lines, they are similar

Answer 2

Last pair of triangles represent congruence.

Explanation:

If
`\triangle EFG \cong \triangle RTS`, it can be deducted the following:

`\angle E \cong \angle R\\\angle F \cong \angle T\\\angle G \cong \angle S`

Also,

`EF \cong RT\\FG \cong TS\\EG \cong RS`

Notice that the last imag shows the correct congruence, because it shows the congruence between sides as we said before.