Difference between revisions of "Geometry"

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The most common type of geometry used in pre-[[college|collegiate]] [[mathematics competitions]] is Euclidean geometry. This type of geometry was first formally outlined by the Greek [[mathematician]] [[Euclid]] in his book ''[[The Elements]]''.  
 
The most common type of geometry used in pre-[[college|collegiate]] [[mathematics competitions]] is Euclidean geometry. This type of geometry was first formally outlined by the Greek [[mathematician]] [[Euclid]] in his book ''[[The Elements]]''.  
  
===Eleventh Postulate===
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===Parallel Postulate===
{{main|The Eleventh Postulate}}
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{{main|Parallel Postulate}}
The eleventh [[postulate]] stated in the book,  
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The seventh [[postulate]] stated in the book,  
  
 
:''“Through any line and a point not on the line, there is exactly one line passing through that point parallel to the line”''
 
:''“Through any line and a point not on the line, there is exactly one line passing through that point parallel to the line”''
  
was the subject of a controversy for many centuries. This postulate is the basis of Euclidean geometry.
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was the subject of a controversy for many centuries, with many attempted proofs. It is much less simple than the other postulates, and more wordy. This postulate is the basis of Euclidean geometry.
  
 
== Non-Euclidean Geometry ==
 
== Non-Euclidean Geometry ==

Revision as of 14:12, 22 December 2007

Geometry is the field of mathematics dealing with figures in a given space.

Euclidean Geometry

Main article: Euclidean geometry

The most common type of geometry used in pre-collegiate mathematics competitions is Euclidean geometry. This type of geometry was first formally outlined by the Greek mathematician Euclid in his book The Elements.

Parallel Postulate

Main article: Parallel Postulate

The seventh postulate stated in the book,

“Through any line and a point not on the line, there is exactly one line passing through that point parallel to the line”

was the subject of a controversy for many centuries, with many attempted proofs. It is much less simple than the other postulates, and more wordy. This postulate is the basis of Euclidean geometry.

Non-Euclidean Geometry

Non-Euclidean geometry are geometries in which the eleventh postulate is altered. Types of non-Euclidean geometry include:

Student Guides to Geometry

Other Topics of Interest

See also