Geometry

Question Analysis:
This question tests whether the student can correctly apply the “one pair of opposite sides parallel and congruent” rule.
The main focus is on understanding and applying this specific sufficient condition.

Key Concept Explanation:
One of the five conditions to prove a parallelogram is:
If one pair of opposite sides is both parallel and congruent, then the quadrilateral is a parallelogram.

Step-by-Step Solution:
AB ∥ CD ✅
AB = CD ✅
This is exactly the condition needed
So ABCD is a parallelogram

Common Mistakes:
Assuming more is n...