1. prove: cbf ≅ edf using isometric (rigid) transformations.
outline the necessary transformations to prove cbf edf using a paragraph proof. be sure to name specific sides or angles used in the transformation and any congruency statements.

2. the congruency of mno and xyz can be proven using a reflection across the line bisecting . however, this congruency can also be proven using geometric postulates, theorems, and oz definitions. prove that the triangles are congruent using a two-column proof and triangle congruency theorems.