Geometry

Question Analysis:
This question applies shape definitions to a real-world object.
The main focus is recognizing that equal sides + 90° angles uniquely define a square.

Key Concept Explanation:
Square: All sides equal + all angles 90° + equal/perpendicular diagonals.
Rectangle: Requires only 90° angles (sides need not be equal).
Rhombus: Requires only equal sides (angles need not be 90°).

Step-by-Step Solution:
Option A: Incorrect. Rectangles don’t require equal sides.
Option B: Incorrect. Rhombuses don’t require 90° angles.
Option C: Correct. The frame meets both c...