Rotation
Revision as of 23:51, 20 May 2013 by Willalphagamma (talk | contribs) (Created page with "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...")
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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