A cube is one of them
A tetrahedron.
A regular tetrahedron (triangular pyramid).
A tetrahedron
it is a 3D shape and has 4 sides
a square bottomed pyramid
No 3D shape with FLAT SIDES has exactly 3 faces. 4 is the minimum.
That 3D shape is called triangular pyramid.
it is a strong inadiquate word that describes a 3d shape. A tetrahedron.
triangular pyramid
A triangular pyramid.
A tetrahedron.
A regular tetrahedron (triangular pyramid).
A tetrahedron
a triangular pyramid
Cuboid
it is a 3D shape and has 4 sides
A tetrahedron, also called a pyramid is a three-dimensional shape with four faces.