A 3-D shape with 8 faces is an octahedron.
It doesn't exist. The least number of sides for a 3-D shape only made of triangles is 4.
There is no 3D shape with 6 faces: 4 rectangles and 2 triangles. See the link for all forms of hexahedra.
-8
5
A 3-D shape with 8 faces is an octahedron.
triangular based pyramid
A truncated tetrahedron.
There is no 3-d shape with 4 and 1 = 5 triangular faces.
Tetra = four. It is a 3-d shape with 4 faces.
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.
A 3-d shape with 6 equal faces is a cube. It has 6 squares as it's faces. A 3-d shape with 6 equal faces and only 2 squares is a rectangular prism. It has 2 squares and 4 other rectangles (squares are rectangles too) as it's faces.
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.
tetrahedron
octahedron
All of them.
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.