The shape of an object can be characterized by basic geometry
such as points, line, curves, plane, and so on. For an object of greater
than 2 dimensions, one can always reduce the dimensions of the shape by
considering the shape of a crosssection or a projection. The crosssection of a spherical object, for example, will be circular. More complex shapes would, however, generate various curvatures depending on the type of crosssection (eg. horizontal, vertical). Because of the variation possible in taking crosssection, the orientation of the object is critical. The shape does not depend on changes in orientation/direction. However, a mirror image could be called a different shape. Shape may change if the object is scaled differentially. For example, a sphere becomes an ellipsoid when scaled differently in the vertical and horizontal axis. In other words, preserving axis of symmetry is important for preserving shapes Common Shapes

