Geometry

Question Analysis:
Focuses on how translation affects angles in a figure.
The main concept tested is angle preservation under translation.

Key Concept Explanation:
Translations are rigid motions, meaning all angles and lengths remain unchanged.

Step-by-Step Solution:
∠X → ∠X′ by translation
Rigid motion = no change in size or angle
Therefore, ∠X = ∠X′

Option Analysis:
A. Incorrect – No angle increases in translation.
B. Incorrect – No angle decreases.
C. Correct – Congruent angles → definition of rigid moti...