A right pentagonal prism.
The simplest such shape is PYRAMID.
Spheres
3d shape Well actually it is a Cube
a sphere
A 3D shape with all triangular faces can be a tetrahedron pyramid.
the other faces on a pentagonal prism would be rectangular
Hexagonal prism has percandicular faces
it is a decogonanon it is a decogonanon
The 3d shape that have five faces would be a triangular prism **************** or a pyramid
triangular prisom
The simplest such shape is PYRAMID.
Spheres
3d shape Well actually it is a Cube
A Ronagon
prism
No 3D shape with FLAT SIDES has exactly 3 faces. 4 is the minimum.
A Pyramid is a 7 lettered 3D shape with triangular faces.