Yes it is possible,a triangular pyramid or prism
Yes: the tetrahedron.
A polyhedron with two congruent triangles. There are very many possible configurations.
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
Square Based PyramidTetrahedron: A tetrahedron is a polyhedron made of 4 triangles. A "regular tetrahedron" is a tetrahedron where the triangles are equilateral. (A polyhedron is any 3 dimentional figure made of flat surfaces and straight lines.)
it is afrog
pyramid
A Triangular Pyramid
A polyhedron with a polygonal base and triangles for sides.
Octohedron
octahedron
pyramid
diamond/octahedron