Question

Triangle DEG is congruent to triangle?

Answer 1

ΔDEG ≅ ΔFGE

Side-Angle-Side

Explanation:

DG ║ EF because DG⊥DE and GF⊥EF

∠DGE ≅ ∠FEG because alternate interior angles of parallel lines are congruent

so Side-Angle-Side proves congruency