Geometry

Question Analysis:
This question tests whether two squares with equal side lengths are necessarily congruent.

Key Concept Explanation:
Congruent polygons must have equal corresponding sides and angles.
A square has four equal sides and four right angles (90° each).
If two squares have the same side length, then their corresponding sides and angles are equal, making them congruent.

Step-by-Step Solution:
Any two squares have equal angles (all 90°), which satisfies the angle congruency condition.
If the side lengths of both squares are identical, then their corresponding sides are also equal.
Since both corresponding sides and angles are equal, the two squa...