In ΔABC and ΔDEF, AB = DE and BC = EF, then one can infer that ΔABC ≅ ΔDEF, when
A
∠BAC = ∠EFD
B
∠ACB = ∠EDF
C
∠ABC = 2∠DEF
D
∠ABC = ∠DEF
Correct Answer: ∠ABC = ∠DEF
According to question,
∠ABC = ∠DEF
Note : Two triangles are congruent if two sides and the included angle of one triangle are equal to the corresponding sides and the included angles of the other triangle (SAS criterion).
