File:Ceva1.PNG
Ceva1.PNG (344 × 186 pixels, file size: 6 KB, MIME type: image/png)
Let ABC be a triangle, and let D, E, F be points on lines BC, CA, AB, respectively. Lines AD, BE, CF are concurrent if and only if
where lengths are directed. This also works for the reciprocal or each of the ratios, as the reciprocal of 1 is 1.
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current | 09:26, 18 August 2006 | 344 × 186 (6 KB) | Joml88 (talk | contribs) |
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