Problem
(3) Figure \( A B C D \) has been reflected across the \( y \)-axis to form figure WXYZ. Which of the following statements is true? (A) \( m \angle A \cong m \angle Y \) (B) \( m \angle D \cong m \angle X \) (C) \( \overline{A B} \cong \overline{W X} \) (D) \( \overline{A B} \cong \overline{Y Z} \)
Solution
Step 1 ：1. Reflect \(ABCD\) across the \(y\)-axis
Step 2 ：2. Find corresponding angles between reflected figure and original
Step 3 ：3. Determine which angles are congruent
