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 87
83. In Fig. 67 ABCD isa square with diagonals ACand BD. … Fig, 67a. — Mosaic Flooring. EXERCISES 1. Show how Fig. 67 is obtained from Fig. 66. 2. If ^5 = a, find the area of POQZR WX. Ans. -(9-6\/2). 3. li AB = a, find the area of the square BGVF. Ans. ^\3-2v^). 4. Prove that GQOFand RZCK ?ire congruent rhombuses. DESIGNS BASED ON OCTAGONS WITHIN SQUARES…
Geometry · Decoration and ornament
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