Question

question 3 of 10
which of the following describes a rigid motion transformation?
a. slicing a log into sections
b. filling a tire with air
c. spinning a spinner
d. enlarging a photo

Explanation:

A rigid - motion transformation (also known as an isometry) is a transformation that preserves the shape and size of a figure.

• Option A: Slicing a log into sections changes the size (length) of each part of the log. It is not a rigid - motion transformation.
• Option B: Filling a tire with air changes the shape (and size in terms of volume) of the tire. It is not a rigid - motion transformation.
• Option C: Spinning a spinner is a rotation. Rotation is a type of rigid - motion transformation. The shape and size of the spinner remain the same.
• Option D: Enlarging a photo changes the size of the photo. It is a dilation (a non - rigid transformation if the scale factor is not 1).

Answer:

C. Spinning a spinner