Question

unit 1 lesson 3 practice problems
1 here are four triangles that have each been transformed by a different transformation. which transformation is not a rigid transformation?
a.
b.
c.
d.

Explanation:

Step1: Recall rigid - transformation definition

Rigid transformations (translations, rotations, reflections) preserve side - lengths and angles.

Step2: Analyze each option

Option a appears to be a translation, option b a rotation, option c a reflection. Option d shows a dilation (enlargement or reduction), which changes the size of the triangle and thus is not a rigid transformation.

Answer:

d.