A diamond, as in playing cards is not a polyhedron.A rough diamond is not a polyhedron. A cut diamond is [usually] a polyhedron.
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A triangle is not a polyhedron. A triangle is a two-dimensional figure, and a polyhedron is a three-dimensional solid. An example of a triangular-shaped polyhedron is a pyramid.
False
False
It is a face of the polyhedron
A sphere is not a polyhedron because it has no edges, no vertices and no flat faces The word 'polyhedron' means many faces.
diamond/octahedron
The correct name for a 3D diamond shape is a rhombic dodecahedron. This polyhedron has 12 congruent rhombus-shaped faces and is a type of dodecahedron, which is a polyhedron with 12 faces. The term "diamond" is often used colloquially to describe this shape due to its resemblance to the face of a cut diamond.
Octohedron, or diamond
No, they are the faces of the polyhedron.
The definition of polyhedron. If it was not faceted it would not be a polyhedron.
yes it is a polyhedron
No, a cubiod is not a polyhedron but a cuboid is.
They are the faces of the polyhedron.
A triangle is not a polyhedron. A triangle is a two-dimensional figure, and a polyhedron is a three-dimensional solid. An example of a triangular-shaped polyhedron is a pyramid.
False
False
It is a face of the polyhedron