Tetrahedron = Triangular PyramidAnswer = 4 (1 Base + 3 Sides)
pentahedron examples: tetrahedron with one truncated corner, square pyramid
No.
In geometry, a tetrahedron is a solid with four faces, which is a triangular pyramid (don't forget the base-face), and a regular tetrahedron has (4) faces that are equilateral triangles.
A tetrahedron has 4 faces. A "regular tetrahedron" has an equilateral triangular base with three equilateral triangles as sides coming up from it.
A truncated tetrahedron has eight 8 faces: 4 hexagonal faces and 4 triangular faces.
18 edges
it has 12 vertices
A tetrahedron has four sides (Faces).
A tetrahedron has 4 faces.
Trying to figure this out too...
The answer depend on the truncation but assuming it is by a plane parallel to the base, the truncated tetrahedron is like a triangular prism (except that one base is smaller than the other). It, therefore, has 5 faces, 6 vertices and 9 edges.
4
A tetrahedron has four triangular faces, four vertex corners, and six straight edges.
By definition, it has four faces.
Four sides to a tetrahedron
A truncated tetrahedron.