The base would be a pentagon, while the faces would be triangles.
A pentagon.
A pentagonal pyramid.
a pentagonal pyramid or a pentagonal prisim
a pentagonal pyramid is a shape with a base of a triangle, and triangles forming up to the point
The base of a pentagonal prism is a pentagon. Just like a square pyramid has a square for a base, a pentagonal prism has a pentagon for a base.
A pentagonal pyramid
A pentagonal pyramid is a three-dimensional shape with a pentagonal base and five triangular faces that converge at a single point called the apex. It has six vertices and ten edges. The pentagonal base provides stability and the triangular faces give the pyramid a pointed top.
pentagonal pyramid
It's a Pentagonal Prism or Pyramid.
A square pyramid has a square base and four triangular faces. A pentagonal pyramid has a pentagonal base and five triangular faces.
It's a pentagonal pyramid.
Five (and a pentagonal base).Five (and a pentagonal base).Five (and a pentagonal base).Five (and a pentagonal base).
The base is a pentagon. It has five isosceles triangles rising from the sides to a point above it.