Geometry

Question Analysis:
This question tests understanding of how to correctly form a contrapositive from a conditional statement.
The focus is on identifying and negating both parts of the original statement logically.

Key Concept Explanation:
The contrapositive of “If p, then q” is “If not q, then not p”.
The two are always logically equivalent.

Step-by-Step Solution:
Original: If a triangle is equilateral (p), then it is isosceles (q).
Contrapositive: If a triangle is not isosceles (¬q), then it is not equilateral (¬p).
This matches the given statement exactly.

Common Mistakes:
Con...