For every polyhedron, there is a dual which is a polyhedron that has:a face where the first had a vertex,a vertex where the first had a face,the same number of edges.A self-dual polyhedron is a polyhedron whose dual is the same shape.All pyramids, for example, are self-dual.
A shape is said to be self-similar if it will map onto an enlargement of a part of itself.
The quick answer: because of the high degree of symmetry inherent in the Platonic solids. They are vertex-uniform, edge-uniform and face-uniform. If you hold several models of the same shape up by any vertex, all the models will appear the same. The same goes for holding the models up by any edge, or by any face. Read the following for a little more detail. Many solids that are not Platonic have symmetry as well, but the Platonic solids have some special symmetrical properties. You can create what are called 'dual polyhedrons' for solids, but the duals for Platonic solids are unique. You can form a Platonic solid's dual polyhedron by making the midpoint of every face of the original Platonic solid a vertex of the dual solid within the original. If you start with a cube, a hexahedron really, and make a new solid within it having vertexes at the centers of the square faces of the cube, the solid within will be an octahedron. Tetrahedrons are self-dual, squares and octahedrons are dual with one another, and dodecahedrons and icosahedrons are dual with one another. The dual polyhedron of a Platonic solid is always another Platonic solid. This is difficult to visualize without aid. See link for some clarification. On the dual relationship of a cube [6 faces, 8 vertexes] and octahedron [8 faces, 6 vertexes] breaking down the numbers of faces and vertexes might help. Each of the 6 faces of a cube contains one of the vertexes of the octahedron, and each of the vertexes of a cube will be at the center of one of the faces of the octahedron.
I think self- conscious.
My. My-self
A self-dual logic function is a function that is identical to its dual
For every polyhedron, there is a dual which is a polyhedron that has:a face where the first had a vertex,a vertex where the first had a face,the same number of edges.A self-dual polyhedron is a polyhedron whose dual is the same shape.All pyramids, for example, are self-dual.
it is so because its vertices's and faces are swapped among it only.
A self-referential function in C++, or in any other supporting language, is a recursive function.
You can do them on the DeLonghi 48" Dual Fuel Range with Self-Clean Ovens and Griddle.
1.A urban local self government function in an urban areas whereas a rural local self government function in a rural areas. 2A Urban local self government function with three organs Municipality;Corporation and Nagarpanchayat whereas a Rural local self government function with the Gram panchayat ,Panchayat samiti and Zillaparisad.
That would be the DeLonghi 48" Dual Fuel Range with Self-Clean Ovens and Griddle.
offers self fulfillment and creativity.
A function is a self contained block of code that perform of particular task.
the least important function is the wall of the tissue it self!
It is called self-pollination.
Self -Evaluation