Yes because polyhedron means many faces
Yes, it is.
It is a polyhedron with a pentagonal base. To every side of the pentagon are attached triangles that meet at a single point in a plane higher than the pentagon (if it is a skew pyramid, the apex will not be above the pentagon).
If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.
It is a Pentahedron.
A polyhedron with a polygon base and triangular sides that all meet at a common vertex is known as a pyramid. The base can be any polygon, such as a triangle, square, or pentagon, and the triangular sides are called lateral faces. The vertex where all the triangular faces converge is referred to as the apex of the pyramid. Each type of pyramid is named based on the shape of its base, such as a triangular pyramid or a square pyramid.
Yes, it is.
If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.If it is a simply connected polyhedron then it is a quadrilateral based pyramid and so has 5 faces.
It is a polyhedron with a pentagonal base. To every side of the pentagon are attached triangles that meet at a single point in a plane higher than the pentagon (if it is a skew pyramid, the apex will not be above the pentagon).
A pentahedron (eg square based pyramid) or a hexahedron (cuboid), or a heptahedron (a pentagon based prism). There are other shapes.
It is a Pentahedron.
It is a pentahedron
A square pyramid has 5 sides.
It is a tetrahedron = a triangle based pyramid.
There are infinitely many polyhedra. There is no limit to the number of faces that a polyhedron can have. Given any polyhedron, simply cut off one vertex so that you will have a polyhedron with one more face. Also there are several versions of polyhedra with the same number of faces. A hexahedron, for example, can be a parallelepiped or a pentagon based pyramid or a triangular based dipyramid.
A pentagon-based pyramid
Yes when in the form of a tetrahedron which is a triangular based pyramid
Yes and a triangular based pyramid is a tetrahedron