-1
The correct name for a 3D triangular pyramid is a 'TETRAHEDRON. It has FOUR(4) faces.
triangular pyramid
A triangular pyramid.
It is a tetrahedron which is a triangular based pyramid
a triangular pyramid
a triangular pyramid has six edges and four triangular shaped faces
a triangular pyramid
triangular pyramid
tetrahedra (a pyramid with a triangular base)
triangular prism
Triangular pyramid
your mums nickers