Question

triangles klm and klm are congruent.
which transformation to triangle klm was used to create triangle klm?
a. reflection
b. translation
c. rotation 90° clockwise
d. rotation 90° counterclockwise

Explanation:

Step1: Recall Transformations

Reflection: Flip over a line (mirror image). Translation: Slide without rotation/reflection. Rotation: Turn around a point.

Step2: Analyze the Image

Triangles KLM and K'L'M' are mirror images across the dashed vertical line. So it's a reflection.

Answer:

A. reflection