File:Tangent from exterior point to circle construction.svg
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Original file (SVG file, nominally 512 × 768 pixels, file size: 4 KB)
Summary
| Description | Using Thales' theorem to onstruct tangent lines from an exterior point P to a circle C with centre O by CMG Lee. After finding the midpoint M of OP (magenta), the intersections T₁ and T₂ of C with a circle of radius OM centred on M (cyan) give the tangent lines (tan). | |
| Source | Own work | |
| Author | Cmglee | |
| Other versions |
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Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. A copy of the license is included in the section entitled GNU Free Documentation License. |
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File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 15:12, 5 March 2025 | | 512 × 768 (4 KB) | wikimediacommons>Cmglee | Add alternative method |
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