I don't know but I think C=7.... ha ha it could actually be most
anything based upon the angle of sides A and B.  The Pythagorean
Theorem is c2=a2+b2 for 90 degree right angles.  Other triangles may
vary  : )
Have a look at this: http://library.advanced.org/20991/geo/tri_i.html
and this:
http://argyll.epsb.edmonton.ab.ca/jreed/tlemath8/tledisk3/3202.htm

Bob

David Heys <cel### [at] hotmailcom> wrote in message
news:37E12B7C.B029BC61@hotmail.com...
> o.k., So it's been more years than I wish to count since I've been
in
> high school. :{P
>
> Anyhow, since I have yet to get off my butt and go buy a decent high
> school math book, I'll ask my math question here:
>
> If you know the lengths of two sides of a triangle, what is the
formula
> to figure out the length of the third side?
>
> ie,
>
> Side A = 10 units
> Side B = 7 units
> Side C = ??
>
> David
>
>

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