Difference between revisions of "Quadrilateral"

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A '''quadrilateral''' is a four-sided geometric figure.  
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A '''quadrilateral''' is a four-sided [[polygon]].  Some special quadrilaterals include [[square (geometry) | square]]s, [[rectangle]]s, [[rhombus|rhombi]], [[parallelogram]]s, [[trapezoid]]s, [[kite]]s, and [[cyclic quadrilateral]]s.  
  
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== Introductory topics ==
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* [[Cyclic quadrilateral]]s
  
== Introductory topics ==
 
* [[Cyclic quadrilateral | cyclic quadrilaterals]]
 
 
=== Resources ===
 
=== Resources ===
 
==== Books ====
 
==== Books ====
 
* [http://www.artofproblemsolving.com/Books/AoPS_B_Item.php?page_id=9 Introduction to Geometry] by [[Richard Rusczyk]]
 
* [http://www.artofproblemsolving.com/Books/AoPS_B_Item.php?page_id=9 Introduction to Geometry] by [[Richard Rusczyk]]
 
  
 
== Intermediate topics ==
 
== Intermediate topics ==
 
* [[Ptolemy's Theorem]]
 
* [[Ptolemy's Theorem]]
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* [[Brahmagupta's formula]]
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=== Resources ===
 
=== Resources ===
 
==== Books ====
 
==== Books ====
 
* [http://www.amazon.com/exec/obidos/ASIN/0486691543/artofproblems-20 Challenging Problems in Geometry] -- A good book for students who already have a solid handle on elementary geometry.
 
* [http://www.amazon.com/exec/obidos/ASIN/0486691543/artofproblems-20 Challenging Problems in Geometry] -- A good book for students who already have a solid handle on elementary geometry.
 
* [http://www.amazon.com/exec/obidos/ASIN/0883856190/artofproblems-20 Geometry Revisited] -- A classic.
 
* [http://www.amazon.com/exec/obidos/ASIN/0883856190/artofproblems-20 Geometry Revisited] -- A classic.
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[[Category:Definition]]
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[[Category:Geometry]]

Latest revision as of 13:33, 23 October 2007

A quadrilateral is a four-sided polygon. Some special quadrilaterals include squares, rectangles, rhombi, parallelograms, trapezoids, kites, and cyclic quadrilaterals.

Introductory topics

Resources

Books

Intermediate topics

Resources

Books

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