Difference between revisions of "Rotation"
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Revision as of 23:51, 20 May 2013
A rotation of a planar figure is a transformation that preserves area and angles, but not orientation. The resulting figure is congruent to the first.
Suppose we wish to rotate triangle 
clockwise around a point 
, also known as the center of rotation.
We would first draw segment 
. Then, we would draw a new segment, 
such that the angle formed is , and 
. Do this for points 
and 
, to get the new triangle 
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