8
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Rotations

Question 8 of 8 • GCSS_GA-Geometry: Concepts and Connections_IC

For the transformation to be defined as a rotation, which statements must be true? Select three options.

Answer
A
The segment connecting the center of rotation, C, to a point on the pre-image (figure 1) is equal in length to the segment that connects the center of rotation to its corresponding point on the image (figure 2).
B
The transformation is rigid.
C
Every point on figure 1 moves through the same angle of rotation about the center of rotation, C, to create figure 2.
D
Segment CP is parallel to segment CP'.
E
If figure 1 is rotated 180° about point C, it will be mapped onto itself.