Question

the triangles are congruent by the sss congruence theorem.
which rigid transformation(s) can map △abc onto △ fed?
○ reflection, then dilation
○ reflection, then translation
○ rotation, then translation
○ rotation, then reflection

Explanation:

Rigid transformations preserve shape and size (no dilation). Reflecting △ABC over a line can align its orientation with △FED, then translating the reflected triangle moves it to match △FED's position.

Answer:

reflection, then translation