Talk:Space diagonal

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I added two sentences to i-agonal, regarding monagonal and i-rows. --Harvey Heinz 16:08, 19 September 2007 (UTC)

The suggestion to merge this with diagonal is a good one, if so best merge this under the title r-agonal, as this is the generic term for all these specific lines. "diagonal" is the best known of all though, "space diagonal" I hardly ever use.

Aale de Winkel 11:38, 20 September 2007 (UTC)

[edit] Does this exist?

Hello, in calculus we learned that to find the space diagonal of a rectangular prism you can apply the following formula:

d² = x² + y² + z²

x, y, and z being the length width and height. Is this a real formula because our teacher couldn't remember the name of it? If so, what is it called? He said it might be Herod's Theorem. 216.179.3.1 (talk) 03:29, 22 November 2007 (UTC)