Geometrical shapes are two-dimensional or three-dimensional figures that are used to describe and analyze the properties of space. The term 'geometrical shape' can refer to a variety of shapes, including an ELLIPSE and a CONE. An ELLIPSE is a closed curve in a plane, which is defined by two focal points and a set of points such that the sum of the distances from each point to the two focal points is constant. A CONE is a three-dimensional geometric shape with a circular base and a curved surface that tapers to a point.