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A cube.
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A polyhedron whose faces are identical regular polygons?
Platonic solids.
How is a hexagonal pyramid a polyhedron?
A polyhedron is a simply connected 3-dimensional shape whose faces are all regular polygons. A hexagonal pyramid is a special case in which one face is a hexagon and six faces are triangles.
What is a polyhedron whose bases are triangles and the other faces are parallelograms?
A triangular prism.
Where did the name octahedron come from?
A polyhedron is closed a 3-dimensional figure whose faces are all polygons. The prefix "octa-" refers to eight and an octahedron is a polyhedron with 8 faces.
What does the word poly hedron mean?
A polyhedron is a solid object all of whose faces are polygons.
Is a sphere a polyhedron?
No, a sphere is not a polyhedron.A polyhedron is a three-dimensional geometric figure whose sides are polygons.A regular polyhedron is a polyhedron whose faces are all congruent regular polygons.
A polyhedron whose faces are identical regular polygons?
Platonic solids.
Is a truncated isocahedron a regular polyhedron?
No. It is a semi-regular polyhedron. Explanation. The truncated icosahedron is a polyhedron that can be constructed from an icosahedron with the 12 vertices truncated (cut off) such that one third of each edge is cut off at each of both ends. This creates 12 new pentagon faces, and leaves the original 20 triangle faces as regular hexagons A regular polyhedron is a polyhedron whose faces are congruent regular polygons. The truncated icosahedron is NOT a regular polyhedron, it is a semiregular polyhedron. It is a uniform polyhedron.
What are the defining characteristics of a regular polyhedra?
A regular polyhedron is one whose faces are all regular polygons and whose vertices are all of equal [dihedral] measure.
What is the difference between a polyhedron and a regular polyhedron?
A Polyhedron is a closed plane figure whose faces are portions of planes. Prisms and pyramids are examples of Polyhedron's. While a Regular Polyhedron is a Polyhedron whose facces are all regular Polygons and whose Vertices are all alike. There are only five Regular Polyhedron's: Tetahedron , Octahedron , Icosahedron , Hexahedron , and Dodecahedron .To clarify, there are five known Platonic Solids: regular polyhedrons which are convex on all their vertices.The tetrahedron is also known as the triangular pyramid: a regular one has an identical equilateral triangle for each of its four faces. This is the one Platonic solid which is self-dual, as each face has three sides and each vertex joins three edges.The regular hexahedron is better known as the cube: each of its six faces is a square, and each vertex joins three edges. Its dual counterpart is the regular octahedron. In this case, each of its eight faces is three-sides (an equilateral triangle) and each vertex joins four edges. To picture the octahedron, think two square pyramids mated on their square faces, leaving only the triangular faces.Finally, there is the regular dodecahedron (12 faces), which is composed of regular pentagons (five sides). Each vertex again joins three edges. Its dual counterpart is the regular icosahedron. It has 20 triangular faces, and each vertex joins five edges.
How is a hexagonal pyramid a polyhedron?
A polyhedron is a simply connected 3-dimensional shape whose faces are all regular polygons. A hexagonal pyramid is a special case in which one face is a hexagon and six faces are triangles.
What is a polyhedron whose faces are all equilateral tringles and it has eight faces?
An eight-face polyhedron is called an octahedron.
What do you call a 3-D octagon shape?
As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons. As far as I am aware, there is no polyhedron (3-d figure) whose faces are all octagons.
How is a shape a polyhedron?
A polyhedron is a 3-dimensional shape whose faces are all polygons.
What is polyhedron crystal?
It is a crystal, all of whose faces are polygons.
A polyhedron whose bases are triangles and whose other faces are parallelograms?
Triangular prism
What is meant by the word face in terms of platonic solid?
A platonic solid is a special kind of polyhedron. A polyhedron is a 3-D figure whose faces are polygons.In a platonic solid all faces are identical regular polygons. A polyhedron has faces, edges, and vertices. The numbers of each are related by Euler's formula, V+F=E+2
