Tangent to a Parabola Small 315×320 Medium 631×640 Large 1009×1024 Download Tiff Original 2366×2400 | (305.8 KB) Description Illustration of a tangent line drawn from an external point to a parabola. Keywords abscissa, conic sections, coordinates, directrix, external, focal chord, focus, latus rectum, ordinate, parabola, parabolas, point, section, tangent Galleries Conic Sections: Parabolas Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 416
