- Patricia Betzing
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!