Answer:
1. Congruent (shape has been reflected)
2. Similar (shape has changed size but remains in the same position)
3. Congruent (shape has been rotated)
4. Similar (shape has been moved by units but remains in the same position as the other triangle)
4.))
If ABC and DEF are the same angles then everything correlates with the angle on the opposite shape.
<A =~ <D
BC =~ = EF
<C =~ <F