A circle is a shape consisting of all points in a plane that are at a given distance from a given point, the centre. The distance between any point of the circle and the centre is called the radius.
Circular cave paintings in Santa Barbara County, California
Circles in an old Arabic astronomical drawing.
The compass in this 13th-century manuscript is a symbol of God's act of Creation. Notice also the circular shape of the halo.
A shape is a graphical representation of an object's form or its external boundary, outline, or external surface; it is distinct from other object properties, such as color, texture, or material type.
In geometry, shape excludes information about the object's location, scale, orientation and reflection.
A figure is a representation including both shape and size.
A children's toy called Shape-O made by Tupperware used for learning various shapes.