On 2008-06-02, Bob La Londe wrote:
"Ignoramus27711" wrote in message
...

Do you remember

A^2 + B^2 = C^2

Pick any two and calculate the third. I used to use it all the time in my
dad's hardware store to calculate how much guy wire somebody needed to
support an antenna tower. Same principle, different application.

Yes. It is good to remember some common multipliers, like for 45
degrees.

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