Answer:
ΔBDE ≅ΔBFK by rule ASA
Explanation:
Given
≅

⊥
and
⊥

So, ∠
∠
°
We can see in Δ
and Δ
∠
∠
included angle
∠
∠
° (Given)
Also,
≅
(Given)
From ASA
We can see two angles and one included side are same as corresponding triangle then,
ΔBDE ≅ΔBFK by rule ASA