a triangular pyramid.
A regular tetrahedron (triangular pyramid).
3d shape Well actually it is a Cube
A 3D shape with all triangular faces can be a tetrahedron pyramid.
triangular prism
a triangular pyramid.
A regular tetrahedron (triangular pyramid).
3d shape Well actually it is a Cube
Isometric shape
You can call it a "triangular prism" rather than "triangular based prism" ... saying a prism is "triangular" imply that the base is a triangle. There's no other name that I know of. A prism is just a 3d shape, so all you have to say is <type of shape> + prism to get the point across.
A 3D shape with all triangular faces can be a tetrahedron pyramid.
triangular prism
triangular pyramid
triangular pyramid
If the base of the pyramid is a triangle then all its faces would be triangular in shape.
The tetrahedron. If one of the four triangles is equilateral and all others are isosceles, then one might also call it a (triangular-based) pyramid.
It is a tetrahedron, which is defined as a four- sided figure with all triangular sides.