Rotation
A rotation is a circular movement of a figure around a center (or point) of rotation.
During rotation by angle α around the point O the point A is transformed to the point A' such that the angle AOA' is equal α and |OA|=|OA'|.
A rotation is a circular movement of a figure around a center (or point) of rotation.
During rotation by angle α around the point O the point A is transformed to the point A' such that the angle AOA' is equal α and |OA|=|OA'|.