Best Answer plasmid, 09 April 2013 - 04:47 AM

The shortest and most intuitive (although least formal) proof of the answer that I can come up with.

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Guest Message by DevFuse

Started by bonanova, Apr 07 2013 11:28 PM

Best Answer plasmid, 09 April 2013 - 04:47 AM

The shortest and most intuitive (although least formal) proof of the answer that I can come up with.

Spoiler for

Go to the full post
9 replies to this topic

Posted 07 April 2013 - 11:28 PM

A regular tetrahedron (a solid with four faces) can be constructed from four unit-sided equilateral triangles.

Four similar triangles can also be assembled to have a common vertex and a unit-square base.

Adding that square creates a square pyramid (with five faces.)

These two solids can now be joined into another solid: by gluing together, vertex to vertex,

a triangular face from each of them.

How many faces does the joined solid have?

- Bertrand Russell

Posted 07 April 2013 - 11:59 PM

Spoiler for If I am picturing this right...

Posted 08 April 2013 - 04:21 AM

Spoiler for Maybe

Posted 08 April 2013 - 06:00 AM

No correct answers yet.

- Bertrand Russell

Posted 08 April 2013 - 11:32 AM

I'm guessing

Spoiler for

____________

CARPE DIEM !!

"Better to keep your mouth shut and appear stupid than to open it and remove all doubt." Mark Twain

CARPE DIEM !!

"Better to keep your mouth shut and appear stupid than to open it and remove all doubt." Mark Twain

Posted 08 April 2013 - 03:37 PM

Spoiler for you get a...

Posted 08 April 2013 - 03:52 PM

Spoiler for a guess

Posted 08 April 2013 - 05:32 PM

Spoiler for a guess

Too late to edit:

Spoiler for Correction

**Edited by BobbyGo, 08 April 2013 - 05:33 PM.**

Posted 09 April 2013 - 04:47 AM Best Answer

The shortest and most intuitive (although least formal) proof of the answer that I can come up with.

Spoiler for

Posted 09 April 2013 - 11:15 AM

The shortest and most intuitive (although least formal) proof of the answer that I can come up with.

Spoiler for

**plasmid**: Bingo.

Spoiler for Plasmids proof

- Bertrand Russell

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