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 129
^-(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/… … Fig. 105a. EXERCISES 130. 1. Show that Fig. 105 is derived from Fig. 104. 2. If ^^ = 6 and XL = i XO, find the area of (1) OHKLMEO;(2) OENPQFO; (3) ENPQFRS etc. Ans.Q.) 3|; (2) 5|; (3) 18. 3. If AB = a and XL = J XO, find the above areas. 3a2 5a2 4. If ^B = aandZi OX Ans. (1) ^i^; (2) ^^^: (3) -•v/…
Geometry · Decoration and ornament
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