Main post link -> http://www.mathisfunforum.com/viewtopic.php?id=19641

Check it out. Its cool. http://www.mathisfunforum.com/viewtopic.php?id=19641

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TopNewestThere's a better proof.. http://www.artofproblemsolving.com/Resources/articles.php (Look for heron's formula)

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Woah but its still a fairly advanced proof involving complex number geometry, but I love it! And Agnishom, the author of the MathIsFun proof intermediately proves the law of cosines which is a step in the most common proof presented with Heron's formula.

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There was another method of proving it.. it was in AoPS precalc.

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We have alredy done it in our tuition

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