Geometry

Question Analysis:
This question tests recognition of the SAS congruence postulate when two sides and the included angle are given.

Key Concept Explanation:
SAS Congruence Postulate: Two triangles are congruent if two sides and the included angle of one triangle are equal to the corresponding parts of another triangle.
The included angle must be the angle formed between the two given sides.

Step-by-Step Solution:
Given Information:
AB = DE = 6 cm (Side)
AC = DF = 8 cm (Side)
∠A = ∠D = 50° (Included Angle)
Verification:
Both triangles have two pairs of equal sides (AB = DE, AC = DF).
The angle between these sides (∠A and ∠D) is equal.
Conclusion:
The conditions satisfy the SAS postulate, so ΔABC ≅ ΔDEF.

Option Analysis:
(A) SSS → Incorrect (All three sides are not given as equal).
(B) SAS → Correct (Two sides and the included angle match).
(C)...