9-3 Rotations.

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Presentation transcript:

9-3 Rotations

G-CO4—Develop definitions of rotations, reflections, and translations in terms of angles, circles, perpendicular lines, parallel lines, and line segments G-CO5—Given a geometric figure and a rotation, reflection or translation, draw the transformed figure. Specify a sequence of transformations that will carry a given figure onto another. Reason abstractly and quantitatively. G-AL5—Use appropriate tools strategically.

Draw rotations Draw rotations in the coordinate plane.

Rotation A transformation that acts like a turn about a fixed point. If the point is the center of rotation, then the image and preimage are the same point. If the point is not the center of rotation, then the image and preimage are the same distance from the center of rotation and the angle of rotation formed by the preimage, center of rotation, and image points is x.

Counter Clockwise Rotations

Page 643 11-20, 24-27, 39-48(x3) omit 45