Geometry

Question Analysis:
This question involves logical reasoning with conditional statements.
The main focus is on recognizing and constructing the contrapositive of a geometric implication.

Key Concept Explanation:
The contrapositive of a conditional statement “If p, then q” is “If not q, then not p.”
They are logically equivalent—proving one proves the other.

Step-by-Step Solution:
Original statement: “If a triangle is equilateral (p), then it has three congruent angles (q).”
Contrapositive: “If NOT q, then NOT p” → “If a triangle does not have three congruent angles, then it is not equilateral.”
This matches option B exactly.

Option Analysis:
A. Converse, not contrapositive ❌
B. ✅ Correct contrapositive
C. Un...