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Which congruence criterion do you use in the following?
$(a)$. Given: $AC = DF$
$AB = DE$
$BC = EF$
So, $∆ABC ≅ ∆DEF$
$(b)$ Given: $ZX = RP$
$RQ = ZY$
$\angle PRQ = \angle XZY$
So
$(a)$. Given: $AC = DF$
$AB = DE$
$BC = EF$
So, the congruence criterion to show that $∆ABC ≅ ∆DEF$ is SSS[Side-Side-Side] congruence.
$(b)$ Given: $ZX = RP$
$RQ = ZY$
$\angle PRQ = \angle XZY$
So, The congruence criterion to show $∆PQR ≅ ∆XYZ$ that is SAS[Side-Angle-Side] congruence.
$(c)$. Given: $\angle MLN = \angle FGH$
$\angle NML = \angle GFH$
$ML = FG$
So, The congruence criterion to show that $∆LMN ≅ ∆GFH$ is AAS[Angle-Angle-Side] congruence.
$(d)$ Given: $EB = DB$
$AE = BC$
$\angle A = \angle C = 90^{\circ}$
So, The congruence criterion to show that $∆ABE ≅ ∆CDB$ is SAS[Side-Angle-Side] congruence.