A pyramid has the solid quadrilateral pyramid solid shape.However there are also pyramids with geometrical polyhedra/platonic solid shapes of tetrahedron.
tetrahedron
None.
There are also the food pyramid, a cheerleader pyramid, and a teepee. Sorry thats all i can think of
A hexagonal solid * * * * * The correct answer is a triangular pyramid, which is also known as a tetrahedron.
By definition, an icosahedron has 20 faces. The number of edges can be 30 (Platonic solid), 38 (19-gonal pyramid), 54 (18-gonal prism). Other, topologically different icosahedra also exist but are difficult to describe in just words.
A pentahedron, but a square [based] pyramid is a better description since a pentahedron can also be a triangular prism which is nothing like a square pyramid.
You could classify a regular tetrahedron, which is a platonic sold, as a cone.
A Square Pyramid.
a hexahedron.
First, as we all know a mummy or the pharoahs dead body is buried in there. But what we dont know is about the treasure thats in a pyramid and why the treasure is in there. Well thats becuase the egyptians belived that what ever u have in this live you'll need in your knew life (heaven). Then there are also hyroglyphics that are decorated all over the pyramid walls. The hyroglyphics tell you about what the pharoah did when he was alive and also has prayiers all over the wall. HOPE THIS IS USEFULL!!
hexahedron