Difference between revisions of "Quadrilateral"
m (added content) |
|||
Line 1: | Line 1: | ||
− | 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. | + | ==Definition== |
+ | 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. | ||
+ | |||
+ | ==Types of quadrilaterals== | ||
+ | ===Kite=== | ||
+ | {{main|Kite}} | ||
+ | A kite is a quadrilateral with two pairs of adjacent [[congruent]] [[edge]]s. | ||
+ | ===Cyclic Quadrilateral=== | ||
+ | {{main|Cyclic quadrilateral}} | ||
+ | A cyclic quadrilateral is a [[quadrilateral]] that is [[cyclic]]. | ||
+ | ===Parallelogram=== | ||
+ | {{main|Parallelogram}} | ||
+ | A parallelogram is a quadrilateral with two pairs of [[parallel]] [[edge]]s. | ||
+ | ===Rhombus=== | ||
+ | {{main|Rhombus} | ||
+ | A rhombus is an [[equilateral]] parallelogram. | ||
+ | ===Rectangle=== | ||
+ | {{main|Rectangle}} | ||
+ | A rectangle is an [[equiangular]] parallelogram. | ||
+ | ==Square== | ||
+ | {{main|Square (geometry)}} | ||
+ | A square is any [[figure]] that is both a rectangle and a rhombus. | ||
== Introductory topics == | == Introductory topics == | ||
Line 16: | Line 37: | ||
* [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. | ||
− | + | {{stub}} | |
[[Category:Definition]] | [[Category:Definition]] | ||
[[Category:Geometry]] | [[Category:Geometry]] |
Revision as of 19:18, 6 October 2024
Contents
Definition
A quadrilateral is a four-sided polygon. Some special quadrilaterals include squares, rectangles, rhombi, parallelograms, trapezoids, kites, and cyclic quadrilaterals.
Types of quadrilaterals
Kite
- Main article: Kite
A kite is a quadrilateral with two pairs of adjacent congruent edges.
Cyclic Quadrilateral
- Main article: Cyclic quadrilateral
A cyclic quadrilateral is a quadrilateral that is cyclic.
Parallelogram
- Main article: Parallelogram
A parallelogram is a quadrilateral with two pairs of parallel edges.
Rhombus
{{main|Rhombus} A rhombus is an equilateral parallelogram.
Rectangle
- Main article: Rectangle
A rectangle is an equiangular parallelogram.
Square
- Main article: Square (geometry)
A square is any figure that is both a rectangle and a rhombus.
Introductory topics
Resources
Books
Intermediate topics
Resources
Books
- Challenging Problems in Geometry -- A good book for students who already have a solid handle on elementary geometry.
- Geometry Revisited -- A classic.
This article is a stub. Help us out by expanding it.