Difference between revisions of "Semiperimeter"

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==Definition==
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The '''semiperimeter''' of a figure is literally half of the [[perimeter]], or
The semi-perimeter of a figure is literally half of the [[perimeter]], or
 
 
<math>\frac{P}{2}</math>, where <math>P</math> is the total perimeter of a figure.
 
<math>\frac{P}{2}</math>, where <math>P</math> is the total perimeter of a figure.
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==Applications==
 
==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.
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The semiperimeter 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 ==
 
*[[Perimeter]]
 

Revision as of 18:35, 21 June 2006

The semiperimeter of a figure is literally half of the perimeter, or $\frac{P}{2}$, where $P$ is the total perimeter of a figure.


Applications

The semiperimeter 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.