Question

1. which transformations are considered rigid transformations? why?

Explanation:

Rigid transformations include translations, rotations, and reflections. They are called rigid because they preserve the shape and size of a figure, meaning distances between points and angle - measures remain the same.

Answer:

Translations, rotations, and reflections are considered rigid transformations because they preserve the shape and size of a geometric figure by maintaining distances between points and angle - measures.