Chords, Secants, Diameters, and Tangents of a Circle Small 320×258 Medium 640×516 Large 1024×825 Download TIFF Original 2400×1934 | (208.3 KB) Description Illustration of a circle with diameter BC, chord DF, secant MN, and tangent HK. Keywords chord, chords, circle, circles, diameter, diameters, geometry, radii, radius, secant, secants, tangent, tangents Galleries Circles Source: C.A. Hart, Daniel D. Feldman Plane and Solid Geometry (New York, NY: American Book Company, 1911)