Tangents and Chords of a Parabola
Illustration showing that the area of a parabolic segment made by a chord is two thirds the area of the triangle formed by the chord and the tangents drawn through the ends of the chord.
Keywordsconic sections, section, parabola, focus, tangent, area, directrix, coordinates, chords, tangents, parabolas, latus rectum, focal chord, parabolic segment
GalleriesConic Sections: Parabolas
G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 420