Tuesday, July 7, 2009

4-d Cube

Here's a quick puzzle:

Imagine that you live in 4 dimensions and are playing with toothpicks and sticky tack. Someone asks you to construct a 4-d cube out of the toothpicks (with the tack to hold them together at the corners).

In 4-d, how many toothpicks do you need?

How about in n-d?

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