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Center of Rotation
See It in Action
Two examples of the idea done right—and one common look-alike that is not right.
EXAMPLE
EXAMPLE
NON-EXAMPLE
Definition
The center of rotation is the fixed point around which a figure is rotated.
Key Points:
It does not move during the rotation.
Every point in the figure moves in a circular arc around this center.
All points in the figure stay the same distance from the center of rotation during the movement.
Example:
If you rotate a triangle 90° about the origin, the origin is the center of rotation—every point on the triangle turns around that fixed point.
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