Geometry

Question Analysis
This question involves deriving the contrapositive of a statement about isosceles 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 isosceles (P), then it has at least two equal sides (Q)."
Contrapositive: "If a triangle does not have at least two equal sides (not Q), then it is not isosceles (not P)."
The correct answer is B.

Option Analysis:
A: This is the converse, not the contrapositive.
B: Correct contrapositive.
C: This is the inverse, not the contrapositive.
D: This is u...