Question

a figure is rotated 180° counterclockwise with origin as the center of rotation to create a new image, does this transformation preserve or does not preserve congruency?
preserves congruency
does not preserve congruency
no answer text provided.
no answer text provided.

Explanation:

A 180 - degree counter - clockwise rotation about the origin is a rigid transformation. Rigid transformations preserve side - lengths and angle - measures, which means they preserve congruency.

Answer:

Preserves Congruency