A pyramid
A tetrahedron.
A triangular prism has two triangular bases and three lateral rectangular faces. It has five faces in all so that it is a pentahedron.A triangular pyramid has a triangular base and three triangular lateral faces. It has 4 faces in all so that it is a tetrahedron.
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.
A square pyramid has a square base and four congruent triangular faces.
A pyramid
A tetrahedron.
A pyramid.
A triangular prism has two triangular bases and three lateral rectangular faces. It has five faces in all so that it is a pentahedron.A triangular pyramid has a triangular base and three triangular lateral faces. It has 4 faces in all so that it is a tetrahedron.
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.
A square pyramid has a square base and four congruent triangular faces.
A square pyramid has a square base and four triangular faces. A pentagonal pyramid has a pentagonal base and five triangular faces.
That object would be called a triangular pyramid, also known as a tetrahedron.
A square pyramid has a base with 4 equal sides and triangular faces.
1. triangular prism it has 2 triangular faces. 2.triangular base pyramid, it has 5 triangular faces. 3. square base pyramid, it has 4 triangular faces.
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.
It is a 3D shape comprising a triangular base and three triangular lateral faces rising from its edges to meet at an apex above the base.