Question

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

Explanation:

Rigid transformations (translations, rotations, reflections) preserve side - lengths and angles. Dilation is a non - rigid transformation that changes the size of a figure. Without seeing all 4 transformations, we know that if one of them is a dilation (stretching or shrinking of the triangle), it is the non - rigid transformation.

Answer:

The transformation that is a dilation (if present among the 4), as it changes the size of the triangle while translations, rotations, and reflections do not.