A pyramid with a triangular base. The faces are 4 equilateral triangles.
A triangular prism can have a square or triangular base, but faces are normally triangles. (I think)
It is a pyramid
Triangular based pyramid
A pyramid with a hexagonal base has a six sided base and 6 triangular faces.
A geometric figure with a polygonal base and triangular sides is called a pyramid.
A rectangular pyramid has 5 faces: a rectangular base, and 4 triangular faces.
A triangular prism.
No because it has a square base and 4 triangular faces
YesA triangular pyramid is a pyramid having a triangular base. The tetrahedron is a triangular pyramid having congruent equilateral triangles for each of its faces.