The angle of rotation is the angle through which a figure or point is rotated about a fixed point, typically the origin. It is measured in degrees or radians.
Rotation Matrix: A matrix used to perform a rotation in Euclidean space. For a two-dimensional space, it takes the form \( \begin{pmatrix} \cos(\theta) & -\sin(\theta) \\ \sin(\theta) & \cos(\theta) \end{pmatrix} \).
Rigid Transformation: A transformation that preserves distances and angles, such as rotations, translations, and reflections.
Conic Sections: Curves obtained by intersecting a cone with a plane: ellipses, parabolas, and hyperbolas.