∵∠ 1=∠2
∴∠ 1+∠BAC=∠2+∠BAC
That is ∠EAC=∠BAC.
AB = AC AD = AE
∴△AEC is all equal to△△△ ADB (SAS).
∴∠D=∠E
I hope it helps you. You can ask o (∩ _ ∩) o.