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Rotations

In this lesson, we delve into the concept of rotations in geometry, focusing on figures and their movement around a fixed point, Q. A rotation involves turning a figure about point Q by a certain angle measured in degrees. Typically, these rotations are counterclockwise and include common angles such as 90, 180, 270, and 360 degrees. We will work through online activities, enhancing your understanding of how to visualize and perform rotations. Assigned problems from page 564 will help reinforce these concepts and enhance your comprehension of rotational symmetry.

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Rotations

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  1. Rotations

  2. Rotating Figures • Round and round we go… • A rotation is completed around a fixed point, Q • The image of Q is itself • For any other point, V, QV’ = QV and m<VQV’ = x • The number of degrees a figure rotates is the angle of rotation • Written as: • Generally rotated counterclockwise

  3. 90 Degree Rotation

  4. 180 Degree Rotation

  5. 270 Degree Rotation

  6. 360 Degree Rotation

  7. Online Activity

  8. Rotating a Figure

  9. Homework • Pg. 564 • #10, 11, 17 – 22, 54 – 56 • 11 Problems

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