a duodecahedron is one 3D shape that has triangles, and so is an icosahedron. there are others, but they have very long names
A Pyramid is a 7 lettered 3D shape with triangular faces.
There is no shape which has identical parallelogram faces.
Pyramids.
A cuboid.
The 3d shape that have five faces would be a triangular prism **************** or a pyramid
it is a decogonanon it is a decogonanon
PYRAMID
A butt
3d shape Well actually it is a Cube
No 3D shape with FLAT SIDES has exactly 3 faces. 4 is the minimum.
There are infinitely many polyhedra with one or more triangular faces.
prism