Tangent From External Point to an Ellipse

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Illustration of how to draw a tangent to an ellipse from an external point.

Keywords

ellipse, oval, ellipses, ovals, conic sections, section, radius, focus, center, foci, chords, major axis, minor axis, external point, focal chord, focal radii, tangent line

Galleries

Conic Sections: Ellipses

Source

G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 435

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