Question

multiple choice 1 point
which of the following is not isometry? ¿cuál de las siguientes no es isometría?
a
b
c
d
b
a
d
c
clear my selection

Explanation:

Step1: Recall isometry definition

An isometry is a transformation that preserves distances and angles. Translations, rotations, and reflections are isometries.

Step2: Analyze each option

• Option A: Appears to be a translation (shifting) of a star - isometry.
• Option B: Looks like a rotation of a shape - isometry.
• Option C: The two triangles have different sizes. A dilation (scaling) is not an isometry as it changes distances.
• Option D: Appears to be a rotation of a triangle - isometry.

Answer:

D. C