Extending Two Classic Proofs of the Pythagorean Theorem to the Law of Cosines
| Autor: | Ferland, Kevin K. |
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| Zdroj: | Mathematics Magazine; June 2017, Vol. 90 Issue: 3 p182-186, 5p |
| Abstrakt: | SummaryTwo well-known proofs of the Pythagorean theorem are generalized to prove the law of cosines in a geometrically elegant way by computing areas. |
| Databáze: | Supplemental Index |
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