Rotation: a type of congruence transformation in which an image moves in a circular motion to a new position
Center of rotation: the fixed point in which the image is rotating around
Methods by which a rotation can be performed:
A composite of two successive reflections over two intersecting lines
The angle of rotation: the angle formed by the intersecting lines
Rotation postulate: in a given rotation, the angle of rotation is twice the measure of the angle formed by the intersecting lines of reflection
Lecture Slides are screen-captured images of important points in the lecture. Students can download and print out these lecture slide images to do practice problems as well as take notes while watching the lecture.