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12-3: Rotations

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12-3: Rotations. Definition. Rotation – a transformation that turns a figure around a fixed point, called the center of rotation. Examples. Tell whether each transformation appears to be a rotation. Explain. 1. 2. . Examples.

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definition
Definition
  • Rotation – a transformation that turns a figure around a fixed point, called the center of rotation.
examples
Examples

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

1. 2.

examples1
Examples
  • 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.
assignment
Assignment
  • Pg. 842 #2-34 even