This is the "7.3: Rotations" page of the "Geometry Chapter 7" guide.
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Geometry Chapter 7   Tags: geometry, mahlman, math  

Last Updated: Feb 17, 2011 URL: Print Guide RSS Updates

7.3: Rotations Print Page


1) Rotation: a transformation in which a figure is turned about a fixed point.

              Center of Rotation: The fixed point 


2) Rotational Symmetry:  if there is a point in the image that the image can be turned around a certain number of degrees and still look the same.

3.) Theorem 7.3:  If lines k and m intersect at point P, then a reflection in K followed by a reflection in M is a rotation about point P


 a.) The angle of rotation is 2u0, where u0 is the measure of the acute or right angle formed by k and m.


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