Geometry

Question Analysis:
This question applies the opposite sides condition to identify the quadrilateral.

Key Concept Explanation:
If both pairs of opposite sides are equal, the shape must be a parallelogram (even if angles are not 90°).

Step-by-Step Solution:
Option A: False (rhombus requires all sides equal).
Option B: Correct (equal opposite sides ⇒ parallelogram).
Option C: False (no angle information given).
Option D: False (diagonals are equal only in rectangles).

Common Mistakes: