Question

Which pyramid is called Tetrahedron?

Answer 1

The tetrahedron is one kind ofpyramid, which is a polyhedron with a flat polygon base and triangular faces connecting the base to a common point. In the case of a tetrahedron the base is a triangle (any of the four faces can be considered the base), so atetrahedron is also known as a "triangular pyramid".

Answer 2

Tetrahedron is a kind of structure which is shown by a compund which have sp3 hybridization hope it helps u