A triangular based pyramid has 4 faces, 6 edges and 4 vertices
tetrahedron
I cannot think of any 2-d shape. The 3-d shape with four faces is a tetrahedron.
Tetra = four. It is a 3-d shape with 4 faces.
A 3-D shape with 8 faces is an octahedron.
A polyhedron (solid shape formed by plane faces) with four faces is called a tetrahedron.
A tetrahedron is the smallest possible polyhedron: a closed 3-d shape with polygonal faces. It has 4 triangular faces, 4 vertices and 6 edges. It is also known as a triangle-based pyramid.
There is no such shape. The only convex shape that has four faces is a tetrahedron, and that has four vertices, not 5.
A square pyramid.
A three-dimensional figure or shape, such as a tetrahedron, has four faces. These faces are equilateral triangles. A tetrahedron also has four vertices and 6 edges.
Pyramid - they have three sides and a base = four faces
Pyramid
A tetrahedron.