came across an old geometry set the other day; started fooling around, to see what I could remember from High School....

worked out the height of a triangle ABC to be: (promise not to laugh!) sqrt(c² - ((a² + b² - c²) / 2a)²) (also works by switching the b and c)

                  A
               c           b
             B    D              C
                     a

(gives me length of AD)

then I tried to simplify this and couldn't; did all kinds of "searches" (one took me to your page) and couldn't find anything on "height of a triangle"; is there a "standard formula" that gives the height given a b c ?

thanks for your help.

                                  
That was from Denis Borris.       we don't have "bad days";
Ottawa, Ontario, Canada.          but "bad days" have us!!!
Be not shy: borrisd@magi.com

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