A pyramid
A triangular pyramid.
Tetrahedron
a triangular pyramid.
The shape that has 8 triangular faces and 12 edges is known as a triangular prism. In a triangular prism, two triangular faces are connected by three rectangular faces, but when considering only the triangular faces, it can also refer to a more complex polyhedron, specifically a truncated tetrahedron, which has 4 triangular faces and 4 hexagonal faces. However, if strictly adhering to the triangular face count, the triangular prism fits the description as it has triangular faces as part of its structure.
A regular tetrahedron (triangular pyramid).
Triangular prism * * * * * No. It is a triangular pyramid or a tetrahedron. A triangular prism has 6 vertices and 5 faces.
A triangular pyramid.
triangular pyramid
There is no 3-d shape with 4 and 1 = 5 triangular faces.
triangular pyramid
A triangular pyramid.
Tetrahedron
A triangular based pyramid (tetrahedron) has 4 triangular faces, 6 edges and 4 vertices.
a triangular pyramid.
a triangular pyramid has six edges and four triangular shaped faces
A regular tetrahedron (triangular pyramid).
A shape that has some triangular faces is a pyramid.