There is a infinite number of them. And even if we look at those that have names only, there is a VERY large number of them. Way too many to list here.
Perhaps you can be a little more specific.
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No. A circle is not a polygon.
polygons
All three dimensional figures have more faces than a one dimensional figure. There are an infinite number of one dimensional points on a three dimensional figure
A sphere, a cylinder and a cone all have properties of a circle in them
A triangular pyramid is a pyramid with a triangular base; all pyramids are by definition three-dimensional figures, so a triangular pyramid is indeed 3D.