Geometry

Question Analysis:
This question tests logical equivalence via contrapositive.
The main focus is recognizing which option matches ¬q ⇒ ¬p.

Key Concept Explanation:
Original: If p ⇒ q
Contrapositive: If ¬q ⇒ ¬p

Step-by-Step Solution:
q: “Diagonals are equal and perpendicular”
¬q: “Diagonals not equal and/or not perpendicular”
So: If not equal and perpendicular → not a square

Option Analysis:
A. ❌ Converse
B. ✅ Contr...