Since the two triangles are congruent. The following must be true: $$\mathrm{\angle }A\cong \mathrm{\angle }D$$ $$\mathrm{\angle }B\cong \mathrm{\angle }E$$ $$\mathrm{\angle }C\cong \mathrm{\angle }F$$ $$\overline{AB}\cong \overline{DE}$$ $$\overline{BC}\cong \overline{EF}$$ $$\overline{AC}\cong \overline{DF}$$