a hexahedron.
A trapezoid is not a platonic solid. There are only five platonic solids. They are the tetrahedron, hexahedron, octahedron, dodecahedron, and icosahedron.
You could classify a regular tetrahedron, which is a platonic sold, as a cone.
hexahedron
hexahedron, cube
There are different numbers on the different platonic solids.
There (not their) are 5 platonic solids.
The book called Platonic Solids: The experience
We don't know for certain who discovered the platonic solids first. However, Pythagoras is credited by some sources as discovering the platonic solids first. Other sources credit Theaetetus as being the first to describe all five platonic solids and proving that these are the *only* platonic solids.
There are 5 platonic solids. They are: Tetrahedron, Octahedron, Icosahedron, Cube, and Dodecahedron
Why are there a limited number of platonic solids?Read more: Why_are_there_a_limited_number_of_platonic_solids
The Platonic solids were name after the Greek philosopher Plato, who theorized that the classical elements were constructed from the regular solids.
Euclid was the one who proved that there are only five platonic solids.
A cube is the only platonic solid which is a prism.
The Name Platonic solid Comes from Plato the second main reseacher of the five solids. Pythagoras was the one discovered the platonic solids
Because 6 platonic solids would be too many, and 4 wouldn't be enough
No. Platonic solids, as their name suggests, are 3-dimensional objects. A triangle is 2-dimensional.