There are many possible shapes. The regular ones amongst them are the tetrahedron, the octahedron and the icosahedron.
A shape that has some triangular faces is a pyramid.
Triangular Pyramid......... The faces are Triangular....
Pyramids have some triangular faces.
triangular prism
triangular prism
a triangular prism
A cuboid prism has no triangular faces
triangle... because pyramids are triangular therefore triangular pyramids have triangle faces
Triangular Pyrimid
A triangular prism (like a bar of toblerone).A triangular prism.
A triangular dipyramid.
A triangular pyramid.