Square The shape of an object located in some space is a geometrical description of the part of that space Heart Triangle Rectangle occupied by the object, as determined by its external boundary – abstracting from location and orientation in space, size, and other properties such as colour, content, and material composition. Simple shapes can be described by basic geometry objects such as a set of two or more points, a line, a curve, a plane, a plane figure (e.g. square or circle), or Gear wheel a solid figure (e.g. cube or sphere).Most shapes occurring in the physical world are complex. Circle Rhombus Curve Sphere Ring Polygon Cylinder Tube Semicircle Cube Elipse 本文来源：https://www.wddqw.com/doc/24def80fbfd126fff705cc1755270722192e592f.html