Difference between revisions of "Heron's Formula"
m (Fixed link to Brahmagupta) |
m (Changed semiperimeter to semi-perimeter for consistancy) |
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| Line 7: | Line 7: | ||
<math>K=\sqrt{s(s-a)(s-b)(s-c)}</math> | <math>K=\sqrt{s(s-a)(s-b)(s-c)}</math> | ||
| − | where the [[ | + | where the [[semi-perimeter]] <math>s=\frac{a+b+c}{2}</math>. |
=== See Also === | === See Also === | ||
* [[Brahmagupta's formula]] | * [[Brahmagupta's formula]] | ||
Revision as of 19:24, 18 June 2006
Heron's formula (sometimes called Hero's formula) is a method for finding the area of a triangle given only the three side lengths.
Definition
For any triangle with side lengths 
, the area 
can be found using the following formula:
where the semi-perimeter 
.
