The reason ∠ ABC ≅ ∠DBE is that they are vertically opposite angle.
What is a Triangle ?
A triangle is a polygon with three sides and three angles and three vertices.
The diagram is given and it is been asked to fill the missing statement
The ∠ ABC ≅ ∠DBE Reason = ?
The line CE and AD intersects each other at a vertex B and forms vertically opposite angles and so they are equal.
Therefore the reason ∠ ABC ≅ ∠DBE is that they are vertically opposite angle.
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