Geometry

Question Analysis: This question examines the SAS postulate and its implications on triangle congruency.

Key Concept Explanation: The SAS postulate states that if two triangles have two pairs of corresponding sides equal and the included angle equal, the triangles are congruent.

Step-by-Step Solution:
Since congruent triangles have equal sides, their perimeters must also be equal.
Option B is incorrect because congruent triangles must have equal sides.
Option C is incorrect because congruent triangles have the same area.
Option D describes similarity, not congruency.

Option Analysis:
(A) Correct: Equal sides mean equal perimeters.
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