Geometry

Question Analysis:
This question examines orientation and congruence after two isometries.
Focus: Rigid motion and orientation change.

Key Concept Explanation:
Rotation and reflection are isometries.
They preserve shape and size, but may change orientation.

Step-by-Step Solution:
Rotate 180° — congruent but orientation flips.
Reflect over x-axis — orientation changes again.
Shape and size remain the same → congruent. Final orientation differs from the original.

Option Analysis:
A is correct — shape is unchanged bu...