Difference between revisions of "Cyclic quadrilateral"
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A '''cyclic quadrilateral''' is a [[quadrilateral]] that can be inscribed in a circle. They occur frequently on math contests and olympiads due to their interesting properties. | A '''cyclic quadrilateral''' is a [[quadrilateral]] that can be inscribed in a circle. They occur frequently on math contests and olympiads due to their interesting properties. | ||
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| − | + | == Properties == | |
In cyclic quadrilateral <math>ABCD</math>: | In cyclic quadrilateral <math>ABCD</math>: | ||
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| − | + | == Applicable Theorems/Formulae == | |
The following theorems and formulae apply to cyclic quadrilaterals: | The following theorems and formulae apply to cyclic quadrilaterals: | ||
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* [[Ptolemy's theorem]] | * [[Ptolemy's theorem]] | ||
* [[Brahmagupta's formula]] | * [[Brahmagupta's formula]] | ||
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Revision as of 15:29, 24 June 2006
A cyclic quadrilateral is a quadrilateral that can be inscribed in a circle. They occur frequently on math contests and olympiads due to their interesting properties.
Properties
In cyclic quadrilateral 
:
Applicable Theorems/Formulae
The following theorems and formulae apply to cyclic quadrilaterals:
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