Answer:
ΔDEF ≅ ΔIGH
Explanation:
By the third angles theorem, we can conclude that ∠D ≅ ∠G.
Therefore, by the ASA postulate, we can say that ΔDEF ≅ ΔIGH because segment DE and segment IG are congruent by given and since we know the angles ∠F ≅ ∠H by given and ∠D ≅ ∠G by the third angles theorem, you can say that these triangles are congruent by ASA (angle side angle) postulate.