File:Tetrahedron for proofs.png
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English: A tetrahedron for proofs of some statements of the spherical trigonometry. Русский: Тетраэдр для доказательства некоторых утверждений сферической тригонометрии. Поскольку все двугранные углы и плоские углы трёхгранного угла с вершиной O соответствуют сторонам и углам сферического треугольника, для которого будут доказываться утверждения, его самого рисовать не обязательно. |
| Date | |
| Source | Own work |
| Author | Cmapm |
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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 3.0 Unported license.
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- 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.
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 20:31, 18 October 2011 | | 449 × 516 (30 KB) | Cmapm (talk | contribs) |
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