Semiperimeter
Revision as of 16:09, 21 June 2006 by MCrawford (talk | contribs) (Semi-perimeter moved to Semiperimeter: not hyphenated)
Definition
The semi-perimeter of a figure is literally half of the perimeter, or , where is the total perimeter of a figure.
Applications
The semi-perimeter has many uses in geometeric formulas. Two well known examples are Heron's formula and Brahmgupta's formula.