The shape in question is called a square pyramid.
If the base of the pyramid is square, it must have four triangular vertical faces in order to meet at the apex (top). Such a 3D shape is a "square pyramid".
A triangular pyramid has a triangular base and three triangular faces meeting at its apex. A square pyramid has a square base and four triangular faces meeting at its apex.
Two. 4 faces are triangles and the base is a square.
A square pyramid.
A pyramid shape, by default, has a square base. It therefore has 5 faces.
a a square based pentagon
A square-based pyramid
It is a square pyramid.
A square based pyramid.
Nine; eight triangular faces which all meet at the apex and the base, which is in the shape of an octagon.
There would be one face for each side of the square. The answer is four if you or only counting the triangular faces. It would be five if you are including the square base. * * * * * One square base and four triangular faces (that meet at an apex above the base).
A pyramid. With a square base.