Each of them has four triangular faces.
5- each of the sides and the base.
In a square- based pyramid there are 5 facesThere are five faces: The square base, and the four triangles from each side of the square to the top (or bottom) vertex.
Lateral faces are the number of faces excluding the base. Since the square is the base, the other 4 sides will each be touching a lateral face to form a square pyramid (or it wont be a pyramid). So, there are 4.
A pyramid has a triangle for each side of the base, thus for a square pyramid you'll need one square (for the base) and 4 triangles.
All except the base are always triangles; the shape of the base gives the name to the pyramid; eg a pentagonal pyramid has a pentagon as the base and five triangular faces; a triangular pyramid has three triangular faces and also has a triangle for the base.
A square pyramid is one that has a square base. This means there are four triangles, one triangle on each side of the square base.
A pyramid with a square base is called a pentahedron. This is because it is a solid figure that has five faces, and each one of its faces can be turned by 120 degrees.
pyramid. Base is a square, but each of the 4 sides is a triangle.
A hexagonal prism has hexagons at each end whereas a hexagonal pyramid has a hexagonal base and an apex. The numbers of faces, shapes of the faces, numbers of edges and vertices are all different.
A pyramid has 5 faces, one for each direction, and then one on the bottom.