Geometry

Question Analysis
This question tests the ability to derive the contrapositive of a statement about right-angled triangles.

Key Concept Explanation:
The contrapositive of "If P, then Q" is "If not Q, then not P."

Step-by-Step Solution:
Original statement: "If a triangle is right-angled (P), then it satisfies the Pythagorean theorem (Q)."
Contrapositive: "If a triangle does not satisfy the Pythagorean theorem (not Q), then it is not right-angled (not P)."
The statement is true.

Common Mistakes:
Confusing right-angled triang...