Conic Section: 3 Points, 2 Tangents
- Ryan Hirst
- Conic Sections
Case: Three points and two tangents are given.
NOTES: The points of tangency D, E are found using Involution (projection). I then know five points, a case I can solve (http://www.geogebratube.org/material/show/id/213219). When the solution exists, there are four choices. Drag D to any of the red diamonds. ________ Construction of the orange diamonds (double points of an involution): http://www.geogebratube.org/material/show/id/243899