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 57
Fig. 46a. — Parquet Flooring. 56. In Fig. 46 ABCD is a square with diameters and diagonals drawnas shown. OX = OY = OZ = OW. Lines XY, YZ, etc. intersect thediameters at points M, Q, etc. From points M, Q, etc., lines MK, ML,QR, etc. are drawn parallel to the diagonals. EXERCISES 1. Prove that (1)…
Geometry · Decoration and ornament
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