Regular Tetrahedron
A regular tetrahedron is a regular polyhedron composed of 4 equally sized equilateral triangles.
The regular tetrahedron is a regular triangular pyramid.
Characteristics of the Tetrahedron
Number of faces: 4.
Number of vertices: 4.
Number of edges: 6.
Number of concurrent edges at a vertex: 3.
Surface Area of a Regular Tetrahedron
Volume of a Regular Tetrahedron
Example
Calculate the suface area and volume of a regular tetrahedron with an edge of 5 cm.
