Cyclic quadrilateral: Difference between revisions
| Line 11: | Line 11: | ||
* <math>\angle ABD = \angle ACD</math> | * <math>\angle ABD = \angle ACD</math> | ||
* <math>\angle BCA = \angle BDA</math> | * <math>\angle BCA = \angle BDA</math> | ||
* <math>\angle BAC = \angle | * <math>\angle BAC = \angle BDC</math> | ||
* <math>\angle CAD = \angle CBD</math> | * <math>\angle CAD = \angle CBD</math> | ||
== Applicable Theorems/Formulae == | == Applicable Theorems/Formulae == | ||
Revision as of 11:26, 17 July 2006
A cyclic quadrilateral is a quadrilateral that can be inscribed in a circle. They occur frequently on math contests/ olmypiads 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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