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Heron's formula (Theorem)

The area of a triangle with side lengths $ a,b,c$ is

$\displaystyle \triangle=\sqrt{s(s-a)(s-b)(s-c)}$
where $ s=\frac{a+b+c}{2}$ (the semiperimeter).
\includegraphics{triangulo}



"Heron's formula" is owned by drini. [ owner history (1) ]
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See Also: triangle, Brahmagupta's formula

Keywords:  Geometry, Area, Triangle

Attachments:
proof of Heron's formula (Proof) by mathwizard
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Cross-references: semiperimeter, lengths, side, area of a triangle
There are 6 references to this entry.

This is version 3 of Heron's formula, born on 2001-10-06, modified 2004-11-27.
Object id is 140, canonical name is HeronsFormula.
Accessed 12353 times total.

Classification:
AMS MSC: 51-00 (Geometry :: General reference works )
Pending Errata and Addenda
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