\\[ \\angle D A E \\cong \\angle C B E \\] Congruent angles subtracted from congruent angles form congruent angles of Statement \\[ \\begin{array}{l} \\angle D E A \\cong \\angle C E B \\\\ \\triangle D E A \\cong \\triangle C E B \\end{array} \\] Vertical angles are congruent ASA \\[ \\overline{D F} \\sim \\overline{C F} \\] Corresponding Parts of Congruent Triangles