Geometry

Question Analysis:
This question tests understanding of congruence-preserving transformations (isometries).

Key Concept Explanation:
Rigid motions (isometries) always preserve congruence.
Dilation alters size, so it does not preserve congruence.

Step-by-Step Solution:
Translation moves the shape but keeps it congruent. ✅
Reflection flips the shape but maintains congruence. ✅
Rotation changes orientation but preserves congruence. ✅
Dilation alters size, breaking congruence. ❌
Glide reflection is a reflection + translation, so congruence is preserved. ✅

Option Analysis:
A) Translation (Correct) – Preserves congruence.
B) Reflect...