[Elecraft] OT: math question

[David A.Belsley]

I'll go with an alley of zero width.

best wishes,

dave belsley, w1euy


On Mar 30, 2005, at 3:22 PM, Dan Barker wrote:

> I ran into a brain-teaser once, that had me baffled for hours (I won't 
> say
> how many). Finally, I called my sister, the Rocket Scientist 
> ("actually,
> we're not _Rocket_ scientists" - That's a quote from her husband) and 
> asked
> her.
>
> She and Paul spent a few minutes on the problem, figured it out, but 
> it was
> such a trivial answer they threw it away. Since I'd spent so long on 
> the
> Question, I gave her about a week and then I called back. Luckily 
> they'd not
> taken out the trash, so she easily found their notes and read them to 
> me.
>
> I won't spoil it for you 'crafters.
>
> Dan / WG4S / K2 #2456
>
> Problem: An alley has a 20-foot ladder across it, in the left lower 
> corner
> and leaning on the right wall. There also is a 30-foot ladder, from the
> right lower corner leaning on the left wall. The laders cross at 10 
> feet
> high.
>
> How wide is the alley?
>
> Usual conventions: alley is all right angles, ladders have no 
> thickness nor
> bends, blah blah blah...
>
> This should make some juices flow out there. Just simple geometry, or 
> is it?
>
>
> PS: Iteration is cheating. Sorry Issac.
>
>
> <snip>
>  the responses would be far more interesting than merely "looking up" 
> the
> answer
> </snip>
>
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