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Because the literal meaning of polyhedron means 'many faces' A sphere has only one face.

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13y ago

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Why is a sphere not a polyhedron?

A sphere is not a polyhedron because it has no edges, no vertices and no flat faces The word 'polyhedron' means many faces.


What is a polyhedron with no bases?

A non polyhedron with 0 bases is a sphere.


Is a sphere a polyhedron?

No, a sphere is not a polyhedron.A polyhedron is a three-dimensional geometric figure whose sides are polygons.A regular polyhedron is a polyhedron whose faces are all congruent regular polygons.


Is a ball a polyhedron?

no its a sphere


Is a sphere a polyhedron or geometric solid?

A sphere is a geometric solid because it has 3 dimentions.


Is a cone a polyhedron?

NO a cone is not a polyhedron as it has a curved surface. Similarly sphere and cylinders r 3D but not polyhedrons


Is a sphere a prism?

No, a sphere is not a prism. A prism is a polyhedron with two parallel and congruent faces called bases, and all other faces are parallelograms. A sphere, on the other hand, is a three-dimensional geometric shape with all points on its surface equidistant from its center, with no faces, edges, or vertices. In essence, a sphere is a curved surface while a prism is a polyhedron with flat faces.


What is each polygon of a polyhedron called?

It is called a face of the polyhedron.


Is every polyhedron a solid?

No. By definition a polyhedron has to have faces (flat surfaces), edges, and vertices. A sphere, hemisphere, and a cylinder are all solids but are not polyhedra.


What is non-polyhedron?

A polyhedron has "many sides" (by definiton). The only 3-D shape which does not have "many sides" is a sphere (which technically only have one "side").


What polygons that form a polyhedron are called?

They are the faces of the polyhedron.


What is a flat surface of the polyhedron called?

It is a face of the polyhedron