View source for Heron triangle

A triangle the lengths of the sides and the surface area of which are expressible by integers. Named after Heron (1st century A.D.), who studied triangles with side lengths <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/h/h047/h047130/h0471301.png" /> and <img align="absmiddle" border="0" src="https://www.encyclopediaofmath.org/legacyimages/h/h047/h047130/h0471302.png" />, the surface areas of which are 84 and 30, respectively.



====Comments====
The Pythagorean triangles are special cases (cf. [[Pythagorean numbers|Pythagorean numbers]]).