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Where do edges meet in a polyhedron?
Edges meet at a vertex.
Must all the edges of a semiregular polyhedron be the same length?
must all edges of semiregular polyhedron be the same length
Why decahedron is not a regular polyhedron?
It is not a regular polyhedron because it has unequal sides
What polyhedron have some a face but no edges and no vertices?
A polyhedron must have at least 4 faces, at least 4 vertices and at least 6 edges.
What is a polyhedron with seven edges called?
Heptahedron
A polyhedron with 12 vertices and 30 edges has how many faces?
A polyhedron has 30 edges and 12 vertices. How many faces does it have
20 sided polyhedron?
A 20-sided polyhedron is called an icosahedron. It has 20 equilateral triangle faces, 30 edges, and 12 vertices. It is a regular convex polyhedron with rotational symmetry.
Is the tetrahedron a regular polyhedron?
Not necessarily. If all faces are equilateral triangles (all edges are equal length) then it is a regular polyhedron.
What is a regular polyhedron with 12 edges and 8 vertices called?
A cube.
How many edges does a polyhedron have?
That depends on the kind of polyhedron.There are five kinds of regular polyhedra (all edges of equal length).Tetrahedron (four-sided pyramid) has 6 edgesHexahedron (cube) has 12 edgesOctahedron (eight-sided solid) has 12 edgesDodecahedron (12-sided solid) has 30 edgesIcosahedron (20-sided solid) has 30 edgesIt is also possible to have a polyhedron that is not regular, with almost any number of sides and edges.
What polyhedron has 12 vertices and 30 edges?
I do not believe that such a shape exists.
Is a rectangular pyramid is a polyhedron?
Yes. A polyhedron is a geometric shape with flat surfaces and straight edges, so a a pyramid with a rectangular base qualifies as a polyhedron. It is however not a regular polyhedron, which would require all the faces to be the same shape and size. To change your pyramid to a regular polyhedron you'd have to turn it into a tetrahedron.
How many equal sides doea an icosahedron have?
An icosahedron is a regular polyhedron with 20 identical equilateral triangular faces, 30 edges and 12 vertices. It is one of the five platonic solids.
The edges of a polyhedron are polygons which bound the polyhedron?
False
Are The edges of a polyhedron are the polygons which bound the polyhedron?
False
Can a polyhedron have 20 faces 30 edges and 13 vertices?
No. The numbers do not satisfy the Euler characteristic.
How many edges and vertices in a polyhedron?
The number of edges and vertices ina polyhedron will depend on the polyhedron one selects either to study, build or etc...
