# Rotations

## Angle of Rotation

Using the diagram find the measure of the angle of rotation.

## Determine the angle of rotation. Express as a clockwise rotation.

## Finding the Center of the Rotation

To find the center of the rotation.
construct the segment connecting P to P'
Construct the perpendicular bisector of this segment.
Construct the segment connecting Q to Q' OR R to R'.
Construct the perpendicular bisector of this segment.
Find the point of intersection of the two perpendicular bisectors.
This is the center of the rotation!

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