Geometry

Question Analysis:
This question is designed to test the understanding of the proper application of the SAS congruence postulate.
The main focus is on the significance of the included - angle condition in the SAS postulate.

Key Concept Explanation:
The SAS (Side - Angle - Side) congruence postulate strictly requires that the given angle be the included angle between the two given sides.
That is, for two sides and and an angle in one triangle, and corresponding sides and and angle in another triangle, for and to be congruent by SAS, must be the angle between and , and must be the angle between and .

Step - by - Step Solution:
1. In , we have side cm, angle , and side cm, where

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