A source book of problems for geometry, based upon industrial design and architectural ornament (1912)
Sykes, Mabel, 1868-, Slaught, H. E. (Herbert Ellsworth), 1861-1937, Lennes, N. J. (Nels Johann), 1874- · Boston, Allyn and Bacon · leaf 97
tile designgiven in Fig. Iba. In Fig. 75 the octagon ABODE etc. is regular. EXERCISES 1. If one side of the rhombus-shaped tile OMDL is ^V2, find thelength of one side of the octagon ABCD etc., and of the squarePQRS. Ans. (1) 3; (2) 3(1 + V2). 2. If in Fig. 75a each ofthe small white triangles… … DESIGNS CONTAINING EIGBT-POINTED STABS 85 96. In Fig. 76 ABCD is asquare. AE = BF = BG, etc.Points E and H, M and F, etc.,also L and E, N and G, etc. arejoined. Lines EH, FM, etc. inter-sect the diagonals at points X, Y,Z, and W. Lines XW, WZ, etc.are extended to meet the linesEH, GL, FM, etc., at…
Geometry · Decoration and ornament
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