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If you add the vertices and Faces and subtract 2 from that number you get the number of edges.

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โˆ™ 2010-02-03 19:51:04
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Q: What is the relationship among the vertices's faces and edges of polyhedrons?
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Related questions

How many verticess and edges douse a cuboid?

A cuboid douses have 8 verticess and 12 edges.

Why aren't cylinder cones and spheres polyhedrons?

polyhedrons need flat face and edges, corners which cylinder cones don't have.

How many edges does a rectangle have?

4 edges A rectangle has four edges. A rectangle has 4 sides but no edges which are normally applicable to polyhedrons.

Why aren't cylinders cones and spheres polyhedrons geometry?

polyhedrons need flat face and edges, corners which cylinder cones don't have.

What shape is a shape with 18 edges?

Two polyhedrons have 18 edges: truncated tetrahedron and hexagonal prism.

What are some polyhedrons with 10 edges?

I can just think of the pentagonal pyramid.

Do all polyhedrons have three edges at the vertex?

No. There must be at least three but theyre can be more.

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.

What is the relationship among faces and vertices and edges?

Add the number of faces of the shape to the number of vertices, and then subtract 2 to give you the number of edges. This works for most polyhedrons. I hope I have helped :) ALSO, take the number of vertices, divide that by two, then add that answer to the number of vertices... that will give you the number of edges unless it is a pyramid. Here is one that is GURANTEED TO WORK BECAUSE I HAVE TRIED IT. Here is is: Edge= 2 times(Vertice-1)

Describe the algebraic relationship that exists between the sum of the faces and vertices and the number of edges?

you take face, than add the vertice, and subtract 2 from it this works for almost al polyhedrons but it doesn't work for a cylinder

What two polyhedrons have a total of 20 edges?

pentagonal antiprism, pentagonal deltohedron(not deltahedron), decagonal pyramid, and many more.

How does the relationship compare among the number of vertices faces and edges for a pyramid?

A pyramid with an n-sided base will have n + 1 vertices, n + 1 faces, and 2n edges.

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