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12-3: Rotations

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12-3: Rotations

- Rotation – a transformation that turns a figure around a fixed point, called the center of rotation.

Tell whether each transformation appears to be a rotation. Explain.

1. 2.

- Rotate ΔJKL with vertices J(2, 2), K(4, –5), and L(–1, 6) by 180° about the origin.
- Rotate ABC with vertices A(2, -1), B(4, 1), and C(3, 3) by 90 about the origin.

- Pg. 842 #2-34 even