Geometry Triangles and circles Concept
Radical axis
Summary
The radical axis of two non-concentric circles is the set of points that have the same power with respect to both circles. It is a straight line perpendicular to the line through the two centres. When the circles meet in two points, it is the line through those points. Radical axes give short proofs of many concurrency and collinearity results.
Further reading
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| Tag | BFD7T0YY42 |
|---|---|
| URI | m2://BFD7T0YY42 |
| Kind | concept |
| Writing | W0 stub |
| MSC | 51M04 |
| Same as |
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