Geometry

Question Analysis:
This is a coordinate geometry question requiring reasoning about shape classification.
The main focus is on defining square conditions using coordinates.

Key Concept Explanation:
To form a square:
All sides must be equal
All angles must be 90°
Diagonals must be equal and perpendicular
Coordinates suggest a horizontal base and vertical sides.

Step-by-Step Solution:
RS = 4 units (horizontal)
RU = vertical leg = x
To make all sides e...