Spherical Triangle Small 319×320 Medium 639×640 Large 1022×1024 Download Tiff Original 2400×2405 | (463.1 KB) Description Diagram showing a spherical triangle constructed by the intersection of polar arcs. Keywords arc, polar arcs, sector, sectors, sphere, spheres, spherical triangles Galleries Spheres Source: Arthur Latham Baker The Elements of Solid Geometr with Numerous Exercises (Boston, MA: Ginn & Company, 1893) Courtesy the private collection of Roy Winkelman
