Related Terms: Centroid, Circle, Center of gravity, Major arc, Radius, Midpoint, Radial, Fixed point, Sphere, Origin, Spiral, Concentric, Pivot point, Radius vector, Center, Moment, Angle, Control points, Central angle, Polar coordinates, Arc, Reference point, Translation, Tangent to a circle, Cartesian coordinate system, Ellipse, Coordinate system, Snap, Equilibrium point, Rotation, Saddle point, Ordinate, Diameter, Coordinate plane, Eccentricity, Vertex, Lagrange points, Cartesian coordinates, Tangent, Line, Arc, Nodal point, Tangent plane, Concentric circles, Light center length, Geodesic, Coordinates, Abscissa, Initial point