Geometry

Question Analysis:
This conceptual question tests knowledge of transformations and their properties.
The main focus is identifying rigid motions.

Key Concept Explanation:
Only rigid transformations preserve size and shape. Among the options:
Translation is a rigid motion.
Dilation, shear, and enlargement change size or proportions.

Step-by-Step Solution:
Review types of transformations:
Translation = rigid → congruent.
Dilation/shear/enlargement = non-rigid → not congruent.
Identify which one maintains congruence.

Option Analysis:
A. Correct – Translation moves the shape w...