Tangent From External Point to an Ellipse Small 320×197 Medium 640×395 Large 1024×632 Download Tiff Original 2400×1481 | (187.5 KB) Description Illustration of how to draw a tangent to an ellipse from an external point. Keywords center, chords, conic sections, ellipse, ellipses, external point, focal chord, focal radii, foci, focus, major axis, minor axis, oval, ovals, radius, section, tangent line Galleries Conic Sections: Ellipses Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 435
