Which triangles are congruent by ASA?

Answer: ΔABE ≅ ΔDEA
Step-by-step explanation:
From the given picture, In Δ ACE we have AC= CE
Then, ∠A=∠E (1) [∵Angles opposite to equal angles of a triangle are equal.]
Also, it is given that ∠B=∠D=90° [Right angle]
Now, Consider ΔABE and ΔDEA
Here,
∠A=∠E [From (1)]
AE=AE [By Reflexive property]
∠B=∠D=90° [given]
Then, by ASA congruence postulate , ΔABE ≅ ΔDEA