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 128
loped in variousindustries.- FORMS BASED ON SQUARES ONLY D, G n 129. Fig. 104 is the basis for thedesigns shown in Figs. 105 and 106. InFig. 104 ABCD is a square with the Hdiameters and diagonals drawn. XK =XL = XM = YP, etc. EXERCISES 1. Prove that (a) AEOH and KLMN are squares.(J) K, L, P, Q, are… … ^-(i)|; (2)j%. AX 4. If XK = , find the areas mentioned in Ex. 2. n ^s. (1) ^; (2) ^(„2_i). 1 John Leighton, pp. 119, 120. 116 MISCELLANEOUS INDUSTRIES 5. If OK = OE and if AB = a, find the areas mentioned in Ex. 2.Ans. (1) f (3 - 2 V2) ; (2) |(V^ - 1). H \ /i\. ^/ 1 \^ ! IN i i -^ 1 L-—^ R /„^ \i/…
Geometry · Decoration and ornament
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