Question

which congruence theorem can be used to prove △bda ≅ △dbc?
hl
sas
aas
sss

Explanation:

Step1: Identify the triangles as right - angled

$\triangle BDA$ and $\triangle DBC$ are right - angled triangles (given the right - angle markings).

Step2: Check for hypotenuse and leg

The hypotenuse \(BD = BD\) (common side). The legs \(DA = BC\) (marked as equal).

Answer:

HL