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.
YES!!! 'poly' means 'many( faces'. 'Hedron' means a 3-dimensional object. Hence polyhedron is a 'three dimensional object of many faces'.
simlar polyhedron
geometric solid
A polyhedron is a solid shape with four or more polygonal faces. A hexahedron is a solid shape with six polygonal faces and so is a particular type of polyhedron.
A polyhedron is a solid shape with many sides. The word "polyhedron" does not specify a number of sides.
A Cube is NOT a polygon. A cube is a polyhedron;. A polygon is a 2-dimensional figure of many sides A polyhedron is a 3-dimensional object of many faces. A Cube is an ' Hexahedron' , meaning a solid figure of 6(hexa) faces.
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.
Each polyhedron is a kind of solid object. Some solid objects -- for example, a sphere or a torus -- are not polyhedra, but every solid object can be closely approximated with a polyhedra.
No, not every polyhedron is a regular solid. A regular solid, also known as a Platonic solid, is a polyhedron with all faces being congruent regular polygons and the same number of faces meeting at each vertex. In contrast, polyhedra can have irregular shapes, varying face types, and different vertex configurations, making them distinct from regular solids. Examples of non-regular polyhedra include cubes, pyramids, and prisms that do not meet the criteria of regular solids.
A polyhedron.
A face.
A polyhedron is any 3D solid (such as a cube) - therefore, it can have any number of faces.