2 consecutive circles ============= As a solid geometric figure, a doughnut shape is called a torus.
A Solid ... such as a sphere or a cube.
A geometric solid. The answer is NOT polyhedron. A cone, for example, which is a figure made up of the most simple geometric shapes (a straight line) and a circle, is not a polyhedron.
The geometric name for the shape of a Hula Hoop or a smoke ring (which are hollow) is a torus. If the shape is solid, like a donut or a ring, it's called a toroid.
A geometric figure is a figure of any shape and size, and can also be flat/plane ( meaning, two dimensional like triangle, equilateral., pentagon...) or solid (3 dimensional figure like cube, pyramid, sphere..).A geometric model is a geometric figure that represents real life object like butterfly, flower, earth, etc.So a geometric kite is a two dimensional geometric figure or model.
Such at figure - as described - could not be made as a solid geometric shape.
The surface of the doughnut is called a TOROID.The whole thing (the solid contained within a toroid) is called a TORUS.
A side of a solid figure is called a face.