Geometry

Question Analysis:
This question tests understanding of valid justifications for triangle congruency.
The main focus is identifying SSS as a valid congruence proof.

Key Concept Explanation:
The SSS (Side-Side-Side) Theorem states that if all three sides of one triangle match the corresponding three sides of another triangle, the triangles are congruent.

Step-by-Step Solution:
Check each option:
A) Incorrect – Visual appearance is not a mathematical proof.
B) Correct – SSS (Side-Side-Side) is a valid triangle congruence theorem.
C) Incorrect – Equal perimeter does not guarantee congruency (different shapes can have the ...