Just one.
A shape that has some triangular faces is a pyramid.
There are infinitely many polyhedra with one or more triangular faces.
Triangular Pyramid......... The faces are Triangular....
There is no 3-d shape with 4 and 1 = 5 triangular faces.
3
2 of them.
triangular prism
triangular prism
a triangular prism
The shape with all triangular faces is called a tetrahedron. A tetrahedron has four triangular faces, six edges, and four vertices. It is the simplest three-dimensional shape in geometry and is a type of polyhedron. If you're looking for a shape with eight triangular faces, that would be a triangular bipyramid.
triangle... because pyramids are triangular therefore triangular pyramids have triangle faces
A cuboid prism has no triangular faces