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Not a collage kid but got a new idea

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Apr 14, 2008, 1:20:50 PM4/14/08

to app...@support1.mathforum.org

well i'm a 16 year old kid still in high school and i think i found a new formula but my teachers think its irrelavant but i thing otherwise

Eb = # of edges on a base
Ef = # of edges on a face
E = # of edges

this formula works only for prisms and pyramids

Eb(Ef-1)=E

This one works for the dodecahedron and icosahedron

Eb(Ef-1)+(2Eb)=E

I need an opinion to know if its relevant

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Apr 15, 2008, 7:57:32 AM4/15/08

to geometry...@moderators.isc.org

There are difficulties.

For prisms and pyramids, different faces have different numbers of
edges. so "Ef" might have different values.

For the dodecahedron and icosahedron, Ef is well-defined, but what is Eb?

-----------------------------------------

Searching for a relation between V, E, and F - the numbers of vertices,
edges, and faces of a polyhedron - might be a better way.

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Apr 15, 2008, 3:25:59 PM4/15/08

to app...@support1.mathforum.org

To what i know there really isn't a base for it except parallel plains make a base except pyramids

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Apr 15, 2008, 3:25:52 PM4/15/08

to app...@support1.mathforum.org

Eb = # of edges on a base
Ef = # of edges on a face
E = # of edges

F= # of faces

this formula works only for prisms and pyramids

Eb(Ef-1)=E

This one works for the dodecahedron and octahedron

Eb(Ef-1)+(2Eb)=E

For laughs works on the icosahedron

F+10=E

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