There are an infinite number of possible solutions.
A tetrahedron and icosahedron are regular shapes. Then there is the triangular prism.
A cuboid with one vertex cut off, a cube with 2 vertices cut off, 3 vertices etc. In fact, cutting off the vertex of any polyhedron in which three sides (faces) meet at the vertex will give a new triangular face.
Yes. A base on a polyhedron is a face and a base on a polygon is a side.
No, it cannot.
a base
Tetrahedron
False
It is a pentagon.
It is a pentagon.
A polyhedron can have any number of faces 4 or higher.
Any polygon can be the base of a pyramid and so any polygon can form a polyhedron.
A polyhedron has only polygonal faces and any one of them can be considered a base. Therefore a polyhedron with 0 bases cannot exist.
an edge of a polyhedron that is not a base edge
pyramid .