A three-dimensional shape with eight triangular faces is called an octahedron.
octahedron
tetrahedron
it is afrog
There is a contradiction in your question. If the base has four equal sides then is it a square so not all the faces are Triangles. However if the base is a square and the rest of the faces are triangles then your object is a "Square-based Pyramid"
A three-dimensional shape with eight triangular faces is called an octahedron.
Octahedron- A polyhedron with eight faces. All faces of a regular octahedron are congruent, equilateral triangles.
octahedron
tetrahedron
An octahedron.
it is afrog
You're an octagon.
A regular octahedron.
square pyramid
There is a contradiction in your question. If the base has four equal sides then is it a square so not all the faces are Triangles. However if the base is a square and the rest of the faces are triangles then your object is a "Square-based Pyramid"
An octahedron
It is a regular octahedron.