Geometry

Question Analysis:
This question bridges theoretical geometry with practical engineering applications.

Key Concept Explanation:
SSS Verification requires confirming all three corresponding sides.
Perimeter equality does not guarantee side congruency (e.g., 3-4-5 vs. 2-5-5).
Angles and alignment are irrelevant to SSS.

Step-by-Step Solution:
Eliminate incorrect options:
B: SAS method, not SSS.
C: Perimeter ≠ side congruency.
D: Alignment doesn’t affect side lengths.

Correct approach:
Measure all three sides of a unit to confirm co...