File:Triangle-law-of-cosines-proof.png
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![File:Triangle-law-of-cosines-proof.png](https://upload.wikimedia.org/wikipedia/commons/thumb/a/a3/Triangle-law-of-cosines-proof.png/766px-Triangle-law-of-cosines-proof.png)
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Original file (2,390 × 1,870 pixels, file size: 210 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 23:01, 19 June 2020 | ![]() | 2,390 × 1,870 (210 KB) | commons>Wave propagation 1 | Uploaded own work with UploadWizard |
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