Degenerate Conic Forming Triangle Small 191×320 Medium 382×640 Large 611×1024 Download Tiff Original 1433×2400 | (397.6 KB) Description Illustration showing intersecting straight lines meeting to form a triangle. It is formed by the intersection of the surface of a cone with a plane parallel to the axis and actually containing the axis. Keywords cone, cones, conic section, degenerate conic, hyperbola, sections, triangle, triangles Galleries Conic Sections: Hyperbolas Source: Frederick Converse Beach Encyclopedia Americana (New York, NY: Americana Company, 1903)
