A circle.
2 consecutive circles ============= As a solid geometric figure, a doughnut shape is called a torus.
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.
Wheel is a "Toroid" shape which is like a donut.
You put all the chocolate in a wrapping that is in the shape of a donut and you put it in the fridge.
Not sure what you call the hole part, but the part that is taken out of the doughnut (which makes the hole) is called a munchkin.
It is a donut shape.
a donut shape will hold the most weight.and also an l shape
A spiral is first defined as a flat figure. Sometimes it is used to describe a three dimensional case.
donut
A liquid has no defined shape, but has a defined volume. A gas has no defined shape and no defined volume.
A cylinder or half a torus (donut), or a long tubular shape whose ends are lined up so as to be parallel..
You cannot because, geometrically, the shapes are different.