yes it is a polyhedron
no a cuboid is not a polyhedron if it was it would have 9 faces
It is not a regular polyhedron because it has unequal sides
A polyhedron is a closed figure with several (planar) sides, and all its sides are planar. A non polyhedron does not have these properties, maybe it is not closed, maybe one or more of the sides is a curved surface. In some branches of topology the sides of a polyhedron cannot intersect each other.
There are different formulae for different polyhedra and these depend on what information about the polyhedron is given.
If you mean a decahedron then it is a polyhedron with 10 faces
No, they are the faces of the polyhedron.
If, by "sides" you mean faces, then the answer is a pentahedron.
The definition of polyhedron. If it was not faceted it would not be a polyhedron.
yes it is a polyhedron
A solid figure with many sides such as a pyramid
If you mean polyhedron - it is solid figure having many faces
Short answer: there isn't one. The polyhedron with the smallest number of faces (which is probably what you mean) is the tetrahedron, which has four faces.Maybe you meant polygon, in which case the answer is a triangle.
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.
it means changing the mathematics information