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What shape has 12 edges and is a polyhedron and each face is a triangle?
Wiki User
∙ 13y ago
Octogon
Wiki User
∙ 13y ago
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How do find the volume of a polyhedron?
first, find the volume of each shape that is in the polyhedron. then you add all of them together.
Has 4 faces each face equaatril triangle it is a polyhedron?
Yes it is a tetrahedron
Do all pyramids have an even number of edges and why?
Yes because it follows an even pattern sequence starting from 6 8 10 12 ...etc whereas a triangular based pyramid has 6 edges, a square based has 10 edges, a pentagonal based has 10 and so on.
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 many faces vertices and edges does a pentahedron have?
In geometry, a pentahedron is a polyhedron with five faces. That can either be a square pyramid with 5 vertices, 8 edges and 5 faces or a triangular prism with 6 vertices, 9 edges and 5 faces.
What is the shape of tetrahedron?
A tetrahedron is a three-dimensional geometric shape with four triangular faces, six edges, and four vertices. Its shape resembles a pyramid, where each of the four faces is an equilateral triangle.
Shape has 4 faces its a polygon each face is an equilateral triangle?
The figure described is a polyhedron. It is a tetrahedron known as a triangular pyramid.
How many edges does a rectangular triangle have?
A rectangular triangle is an oxymoron! A triangle cannot be rectangular and no rectangular shape can be a triangle. The two words contradict each other.
What does Polyhedron mean in maths?
I don't know if this is correct.In geometry, a polyhedron is a three-dimensional solid formed from flat planar faces with straight edges. For a regularpolyhedron, each side has the same shape and dimensions.
What does polyhedron mean in Greek?
It is Greek for "having many bases".In geometry, a polyhedron is a three-dimensional solid formed from flat planar faces with straight edges. For a regularpolyhedron, each side has the same shape and dimensions.
How many does a tetrahedron have?
A tetrahedron has 4 vertices and 4 sides. Each side is an equilateral triangle. * * * * * Each face is an equilateral triangle only if it is a regular tetrahedron; there is no reason to assume it is.
Do all polyhedrons have 2 edges that meet at each vertex?
No. For example, a cube is a polyhedron and 3 edges meet at each vertex.
How do find the volume of a polyhedron?
first, find the volume of each shape that is in the polyhedron. then you add all of them together.
Which shape has 12 edges and each face ia a triangle?
The term dodecahedron is 2+10 or 12 sided figure.An octahedron has 12 edges and 8 faces.
What shapes does a tetrahedron have?
A tetrahedron is a four sided polyhedron. Each face is a triangle. If it is a regular tetrahedron, then each face is an equilateral triangle.
How many edges of all the polyhedrons meet at each vertex?
The answer will depend on the polyhedron, but often it is 3.The answer will depend on the polyhedron, but often it is 3.The answer will depend on the polyhedron, but often it is 3.The answer will depend on the polyhedron, but often it is 3.
Has 4 faces each face equaatril triangle it is a polyhedron?
Yes it is a tetrahedron
