A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
A triangle is determined by its three sides, so there should be a formula for its area in terms of those sides. There is: Area = vs(sa)(sb)(sc) a, b, and c are the triangle's sides, and s = (a + b + c)/2 is its semi-perimeter. The oldest known proof of this formula dates back to Heron, who lived in Alexandria during the first century AD [10, p. 178]. Heron's Formula can also be written directly in terms of a, b, c: KEITH KENDIG received his Ph.D. from UCLA under Basil Gordon and subsequentlydoi:10.2307/2695295 fatcat:scxcfhp7jjbadldtvrjcoicwlm