Geometry

Question Analysis:
This question applies SSS congruence to a practical scenario, testing whether students can identify the correct verification method.

Key Concept Explanation:
SSS Congruence requires all three corresponding sides to be equal.
Real-world applications often involve direct measurement of all dimensions.

Step-by-Step Solution:
Understand the goal: Confirm both shelves have identical dimensions.
SSS requirement: Measure all three sides of each shelf.
Eliminate incorrect methods:
B uses SAS (not needed here).
C is insufficient (one side doesn't guarantee congruence).
D is irrelevant (weight ≠ shape).

Option Analysis:
A: Correct. Directly satisfies SSS by measuring all sides.
B: Incorrect. Angles are unnecessary for SS...