File:Khayyam Quadrilateral.png
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Captions
Captions
Khayyam Quadrilateral, also known as Khayyam Theory of Parallel Lines.
Summary
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| Description |
English: After Khayyam proved that the two angles at C and D were both right angles, he proves that the two other possibilities, that they were both acute or both obtuse, led to contradictions. If they were acute, CD would be longer than AB, whereas if they were obtuse, CD would be shorter than AB. In each case, Khayyam showed that the lines AC and BD would diverge or converge on both sides of AB, and this would contradict Euclid original postulate. |
| Date | 27 March 2023 |
| Source | Own work |
| Author | Fari Dark |
Licensing
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I, the copyright holder of this work, hereby publish it under the following license:
This file is licensed under the Creative Commons Attribution-Share Alike 4.0 International license.
- You are free:
- to share – to copy, distribute and transmit the work
- to remix – to adapt the work
- Under the following conditions:
- attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
- share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 16:05, 2 April 2023 | | 592 × 414 (2 KB) | Fari Dark (talk | contribs) | Uploaded own work with UploadWizard |
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