A 3D shape with one base and three faces can only have triangular faces.
tetrahedra (a pyramid with a triangular base)
Only one; a triangle is a 2D shape, not a 3D shape. Usually only 3D (or more) shapes are considered to have 'faces'.
The simplest such shape is PYRAMID.
A 3-D shape that has 8 faces is a hexagonal prism. This is a shape that is formed on a hexagon-shaped base.
A square base pyramid
A rectangular prism, it has 6 rectangular faces.
The 3d shape that have five faces would be a triangular prism **************** or a pyramid
Tetrahedron (pyramids, for example)
cylinder: 3 faces, 2 edges, no vertex