Semiperimeter

Revision as of 17:13, 21 June 2006 by IntrepidMath (talk | contribs)

Definition

The semi-perimeter of a figure is literally half of the perimeter, or $\frac{P}{2}$, where $P$ 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 Brahmagupta's formula. It frequently shows up in triangle problems.

See also