Or, conjugate points with respect to a circle.
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Pole and Polar (1 of 3):
[b]→1. Step-by-step construction[/b]. All cases.
2. Put it together: [url]http://www.geogebratube.org/material/show/id/34585[/url]
3. Ruslan and Ludmila: [url]http://www.geogebratube.org/material/show/id/34586[/url]
