Sounds like an octahedron.
A regular octahedron - two square based pyramids stuck together along their square bases.
Pyramids are known with triangular and square bases. In theory, you could build a pyramid using any regular polygon as a base.
Main difference is that square pyramids have square bases, cones have circular bases. For this reason, they're calculated differently.
Pyramids that do not have parallel faces are known as irregular or non-regular pyramids. Unlike regular pyramids, where the base is a regular polygon and the triangular faces are congruent, irregular pyramids can have bases of varying shapes and sizes, leading to non-parallel faces. An example of this is a pyramid with a base that is a scalene triangle, where the triangular faces can differ in size and shape.
Properties of the Pyramids include square bases, triangular bases, equilateral triangles, isosceles triangles, interior right angle triangles and much much more.
An octahedron is the regular solid you are referring to. Octa- is the prefix for 8 sides.
A regular octahedron - two square based pyramids stuck together along their square bases.
Pyramids are known with triangular and square bases. In theory, you could build a pyramid using any regular polygon as a base.
Pyramids are constructed from triangular shapes and can have square or triangle bases
they are different because there bases are different
Main difference is that square pyramids have square bases, cones have circular bases. For this reason, they're calculated differently.
It is a pyramid that has a triangle as its base. The pyramids of Egypt are all built on square bases.
Properties of the Pyramids include square bases, triangular bases, equilateral triangles, isosceles triangles, interior right angle triangles and much much more.
all the bases of a pyramids are polygon
Cubes are prisms that have squares as bases and the height is the same as the edges. A square prism has square bases, top and bottom, and parallelograms as sides. A square pyramid has a square base and triangles for the vertical sides.
Pyramids Have only one base, Prisms have two bases/sides that are opposite and exactly the same.
While it is possible for a pyramid to have a square bases, you should not assume that all pyramids have square bases. Try to picture a triangular pyramid in your head, hopefully you can see that it is possible, and this would answer your question.