Geometry

Question Analysis:
This question tests understanding of geometric transformations (specifically reflections) and their effect on triangle properties.
The key is to recognize that reflections preserve both shape and size.

Key Concept Explanation:
Reflections: A rigid transformation that flips a figure over a line (the "line of reflection").
Properties Preserved:
Side lengths (unchanged)
Angle measures (unchanged)
Shape and size (identical to original)
Congruency: Since reflections preserve all measurements, the reflected triangle is congruent to the original.

Step-by-Step Solution:
Reflection Effects:
The reflected triangle is a mirror image of the original.
No stretching or shrinking occurs (unlike dilations, which are non-rigid).

Evaluate Options:
A) Congruent: Correct. Reflections preserve side lengths and angle measures, satisfying congruency.
B) Similar but not congruent: Incorrect. Similarity allows size differences; congruency does not.
C) Different angle measures: Incor...