4
a triangular based pyramid has 4 faces.
A triangular based prisim has four faces.
A triangular based pyramid which is a tetrahedron has 4 faces, 6 edges and 4 vertices
A triangular based pyramid has 4 faces, 6 edges and 4 vertices.
A square based pyramid has 4 triangular faces.
A triangular based pyramid has 4 faces, 6 edges and 4 vertices
A triangular pyramid has four faces and 2 pairs.
A triangular based pyramid has 4 vertices, 6 edges and 4 faces
A triangular based pyramid has 4 faces, 6 edges and 4 vertices
Including the base it has 4 faces
There are four faces in a triangular pyramid.
4 for a triangular based pyramid and 5 for a square based pyramid