T. Sundara Row's Geometric exercises in paper folding; (1901)
Sundara Rao, Tandalam, 1853-, Beman, Wooster Woodruff, 1850-1922. ed, Smith, David Eugene, 1860-1944. ed · Chicago, The Open Court Pub. Company; [etc., etc.] · leaf 69
IX. THE PENTEDECAGON. 101. Fig. 39 shows how the pentedecagon is ob- tained from the pentagon. Let ABCDE be the pentagon and O its center. … Draw OA, OB, OC, OD, and OF. Produce DO to meet AB in K. Take OF=\ of OD. Fold GFH at right angles to OF. Make OG = OH= OD.
Geometry · Paper work
Internet Archive · Cornell University Library · Public domain (published before 1931). Free to use for anything.
