Question

Which postulate or theorem can be used to prove that AABC = ADCB?

SSS
ASA
SAS
AAS

Answer 1

SSS congruency criteria can be used here to prove ∆ABC ≅ ∆DCB

Solution :

In ∆ABC and ∆DCB

AB = CD (given)

AC = BD (given)

BC = BC (common)

So, by SSS congruency criteria,

∆ABC ≅ ∆DCB