Geometry

Question Analysis：
This question assesses the student's understanding of what is always true about glide reflections.
The main focus is distinguishing between valid properties (e.g., congruence, orientation) and misconceptions (e.g., rotation, similarity).

Key Concept Explanation：
Glide reflection = reflection + translation (parallel to mirror line)
It produces a congruent figure
Reflection causes a flip → changes orientation
Similar figures have proportional sides; congruent figures are identical in size

Step-by-Step Solution：
A: True – glide reflections are rigid motions (they preserve size and shape)
B: False – not equivalent to a 180° rotation
C: True – reflection reverses orientation
D: Tru...