Tangent Plane to a Cone Small 217×320 Medium 434×640 Large 694×1024 Download TIFF Original 1627×2400 | (1.3 MB) Description Illustration of a plane tangent to a cone which contains one element of the cone but does not cut the surface. Keywords cones, geometric solid, planes, right circular cone, solids, tangent plane, tangents Galleries Cones Source: G.A. Wentworth Plane And Solid Geometry (Boston: Ginn & Company, 1899) 343