Question

from unit 1, lesson 10 here are 4 triangles that have each been transformed by a different transformation. which transformation is not a rigid transformation?

Explanation:

Rigid transformations preserve distance and angle - measure. Translations, rotations, and reflections are rigid transformations. Dilation is not a rigid transformation as it changes the size of the figure. We need to visually check for signs of dilation (enlargement or reduction) among the given triangle - transformations.

Answer:

The transformation that shows a change in size (dilation) among the given options is not a rigid transformation. Without seeing all the options clearly, in general, if one of the triangles is larger or smaller than the original triangle while the others are just translated, rotated or reflected, that one is the non - rigid transformation.